Nairobi, April 7 -- In many boardrooms, the dialogue is dominated by mission statements, quarterly targets, and the pursuit of top-tier talent. Yet, a recurring paradox haunts executives - high-potential hires often exit prematurely, and productivity is unstable despite competitive compensation packages.

The root of this problem is rarely a lack of talent, but likely an organisational system that employees find unfulfilling. While leadership is tasked with defining the vision, it is the organisational culture, often dismissed as a complicated HR footnote that ultimately determines a company's survival. Leadership is accountable for culture.

The leadership mirror effect and contagious effects: Organisation culture is not a nebulous conce...