Why do smart leaders make stupid decisions?

It’s a paradox that many of us will have witnessed – leaders with a track record of competence, intellect and vision suddenly making baffling decisions. Whether it’s an acquisition that derails a thriving business, a communication blunder that negatively impacts trust, or a cultural misstep that undermines engagement, the question arises: why is it that smart leaders can make stupid decisions?

At MatchFit, we believe that this not as a failure of competence, but of self-awareness. Smart leaders don’t wake up one day and choose to make stupid decisions. Rather, their judgement gets clouded over time by a subtle but dangerous mix of ego, pressure and overconfidence. These elements can affect decision-making and shape it in ways leaders often can’t see until the damage is done.

The hidden influence of ego

Ego isn’t inherently bad. In fact, a healthy sense of self can help leaders remain confident, assertive and resilient. But when ego starts to take over, it can distort perception. Leaders become overly invested in being right rather than doing what’s right and the ability to listen effectively can lessen. Challenge by co-workers is seen as threat rather than healthy debate, which can lead to dissenting voices being dismissed rather than listened to.

This is trend is particularly risky in high-performance cultures. When leadership is viewed as synonymous with authority or infallibility, decisions can become more about protecting status than delivering results. Our work with senior leadership teams consistently uncovers how ego-driven behaviours—which are typically unconscious—can ripple through an organisation, stifling the freedom to express and put forward innovative ideas.

Under pressure, overreacting

Leadership doesn’t happen in a vacuum. It’s shaped by context including tight deadlines, political dynamics, stakeholder expectations and shifting market trends. Under pressure, even the most experienced leaders can slip into reactive mode. Decisions are made in haste, data is ignored, and ‘doing something’ trumps ‘doing the right thing’.

Pressure can shorten our time horizons and long-term impacts are sacrificed for short-term relief. We see this frequently during periods of transformation or crisis with clients; precisely when calm, reflective leadership is most needed. Our phenomenological approach to leadership development helps leaders slow down, reflect and separate real urgency from perceived panic. It’s this pause, this awareness of context, that often prevents a poor decision from being made in the first place.

Overconfidence: the silent saboteur

Confidence is a strength, but overconfidence can be negative. Smart leaders who’ve had consistent success may start to believe their instincts are always right. Past achievements become a justification for unchecked judgement. In these circumstances, risk may be underestimated and assumptions untested.

Ironically, the more senior a leader becomes, the less likely they are to receive honest feedback. Their decisions may go unchallenged because others assume they must know better, or they fear the consequences of speaking up. This creates a dangerous feedback loop: overconfidence fuels risky decisions, which may not be questioned until it’s too late.

One of the aims of our CLIMB programme is to interrupt this loop. By encouraging leaders to explore their experiences and assumptions, it builds self-awareness and humility. These two essential qualities help leaders manage complex situations more effectively.

Smart doesn’t mean immune

Being intelligent or previously successful doesn’t make someone immune to cognitive biases or emotional triggers. In fact, smart leaders can be even more susceptible because they trust their reasoning capabilities, often a little too much. But the human brain is wired for shortcuts—confirmation bias, groupthink or the sunk-cost fallacy. These aren’t signs of poor intellect, but of being human.

The key difference between a smart leader who grows and one who stagnates is the willingness to examine their own thinking. Reflection, self-questioning and openness to challenge are the safeguards against decision-making drift. And yet, these are rarely prioritised in fast-paced environments unless they are intentionally built into and addressed through leadership development programmes.

Culture: the invisible hand

Organisational culture either cushions or amplifies the impact of poor decisions. A culture that values transparency, challenge and reflection helps to catch poor choices early. One that rewards conformity or protects hierarchy allows them to spread unchecked.

This is why we place such emphasis on culture as a performance lever. Leadership decisions don’t happen in isolation, they emerge from, and feed into, the prevailing culture. If the culture doesn’t support open dialogue or reward reflective thinking, poor decisions become systemic rather than individual.

Building decision-making capabilities

So what can be done? The goal isn’t to eliminate ego, pressure or confidence, they are often part of effective and dynamic leaders. The challenge is to manage them so that they are channelled in a positive way.

Here are four practical ways leaders can improve decision-making fitness:

1. Create space for reflection
   Build thinking time into your day. Regular reflection sessions (both individual and collective) help leaders notice patterns, identify assumptions and spot blind spots.
2. Encourage challenge
   Build teams where constructive dissent is welcomed. Make it safe to ask, “What might we be missing?” or “What if we’re wrong?”
3. Test assumptions deliberately
   Before big decisions, use structured techniques to identify and question assumptions. This could be through premortems, red teaming or scenario planning.
4. Invest in self-awareness
   Use tools, feedback and coaching to deepen understanding of how ego, stress and past success influence thinking. Our Leading-Self development module, for example, focus specifically on uncovering behavioural and motivational drivers that impact judgement.

Ultimately, smart leaders aren’t defined by how often they get it right, but by how quickly they can recognise and recover when they don’t. Stupid decisions don’t mean stupid people, they’re usually signs of pressure, unchecked thinking or unhelpful dynamics.

The smartest leaders aren’t those who know all the answers, but those who keep questioning, especially themselves.