ACE advises: Leadership shapes culture, but it also has a very real impact on a company’s financial performance. When leadership development gets pushed aside, the costs show up quickly — in productivity, retention, morale and overall business growth.
Poor leadership is estimated to cost the U.S. economy nearly $2 trillion a year in lost productivity. That number may sound huge, but most organizations see the effects firsthand through disengaged employees, high turnover and teams that struggle to perform consistently.
Research continues to show that managers have an outsized influence on employee experience. In fact, manager quality accounts for roughly 70% of the difference in team engagement levels — more than compensation, perks, or even company culture initiatives. Despite that, nearly 60% of first-time managers receive no formal leadership training when they move into management roles, according to High5Test’s 2025 findings. Many companies promote strong individual contributors into leadership positions and simply expect them to figure it out as they go.
The impact on retention is significant. About 70% of U.S. employees say they would consider leaving a job because of a bad manager. Replacing employees is expensive, often costing up to twice the employee’s annual salary once recruiting, onboarding and lost productivity are factored in. Gallup estimates that as much as 32% of voluntary turnover could be prevented with stronger leadership and better management practices.
There is also a clear disconnect between what companies say they value and what they actually invest in. While most organizations agree leadership development is important, very few have implemented meaningful leadership training across all levels of the business. According to Apollo Technical, fewer than 5% of companies have done so consistently.
The message for employers is simple: leadership development is not a “nice to have” initiative. Promoting employees into management without giving them the tools to lead effectively carries measurable financial consequences. Organizations that invest in leadership skills are not just improving workplace culture — they are protecting productivity, strengthening retention, and improving long-term business performance.
