Think about the most technically gifted engineer, programmer, or financial analyst you know. Now, imagine promoting them into a leadership role purely because of that operational brilliance. Far too often, this is exactly where workplaces go wrong
In management theory, this error is known as The Peter Principle; the observation that individuals in a hierarchy tend to rise to their exact "level of incompetence." They excel in their roles, get promoted as a reward, and continue climbing until they land in a position whose demands they can no longer meet. One particular study that tracked performance data across hundreds of firms mathematically validated this effect. The data revealed that when a top-performing individual contributor is promoted into management, their subordinates suffer an immediate 7.5% drop in performance. The business lost its best individual contributor and gained an inadequate leader.
As a happiness researcher and workplace consultant I’ve seen firsthand that many people who currently occupy leadership positions do not actually possess the specific skills required to be an effective leader. Being a world-class performer at your role does not inherently equip you with the ability to lead, inspire, and manage human beings. Great leadership is about facilitating high performance, rallying groups around a shared vision, and coaching individuals to fulfil their potential.
These outcomes have little to do with technical prowess but a lot to do with what the corporate world has historically labelled "soft skills." Personally, I prefer to call them happiness skills because the competencies required to successfully lead a team happen to overlap heavily with the skills that wellbeing science identifies as being supportive of long-term happiness.
When a leader actively practices these skills, they don’t just improve their own well-being and performance. They buck the Peter Principle and create a positive ripple effect that is felt throughout their entire organisation.
The three degrees of happiness contagion
To understand the scale of a leader’s emotional footprint, we must look at a 20-year social network analysis published in The BMJ. Researchers Dr Nicholas Christakis and Dr James Fowler discovered that human happiness spreads through social networks via a phenomenon called emotional contagion. They also found that happiness can be measured up to three degrees of separation.
This means that when a person becomes happier, it increases the likelihood of happiness in their direct relationships by 15%. But the ripple doesn’t stop there. It also increases the happiness of their contacts’ contacts (two degrees) by 10%, and their contacts’ contacts’ contacts (three degrees) by nearly 6%.
In a business environment the ramifications of this are remarkable. Leaders act as the emotional thermostat to a team’s collective experience of work. A manager’s impact on their team’s health and wellbeing is so notable that a global workplace study by the Workforce Institute revealed that a direct manager has a greater impact on their employee’s mental health and well-being than that individual's primary care doctor does.
When a leader operates with highly developed happiness skills such as emotional intelligence, self-awareness, and effective communication they stack the well-being deck in favour of their teams.
The human edge of leadership
This explains why traditional, technically-focused leadership development fails to move the needle. If a manager’s core mandate is to maximise their team's productivity and retention, their highest-leverage strategy isn't to micro-manage technical workflows; it is to master the humanistic skills that are associated with happiness.
By actively training leaders in empathy, cognitive agility, adaptive resilience, and active communication, organisations achieve a double sided victory. They cultivate happier, more fulfilled leaders who enjoy greater life satisfaction, while simultaneously reaping the performance benefits of having more engaged employees.
I know for a fact that when I practice happiness skills I think more clearly, I manage my emotions more healthily, and I show up more intentionally. Consistently practicing happiness skills doesn’t just make me a better leader. It makes me a better husband, a better father, a better member of society, and a better version of myself than I would otherwise be.
No leader can force their employees to be happy, nor can they shield them from the natural anxieties of a changing economic landscape and challenging work. But I would argue that great leaders feel pride in taking responsibility for the emotional ecosystem they create in their workplaces.
If we want to create happier, healthier, more thriving workplaces it’s essential to stop treating leadership like a reward for technical prowess or for tenure. If more workplaces treated effective leadership as a moral responsibility, and they supported their emerging leaders to practice and strengthen the humanistic skills of happiness, then I have no doubt we would witness higher rates of engagement, performance, productivity, innovation, and satisfaction across the global workforce.
Declan Edwards is the author of How To Be Happy, and a happiness researcher, educator, and philosopher
