Introverted leaders do have to overcome the strong cultural presumption that extroverts are more effective leaders. Although the population splits into almost equal parts between introverts and extroverts, more than 96 percent of managers and executives are extroverted. In a study done in 2006, 65 percent of senior corporate executives viewed introversion as a barrier to leadership. We must reexamine this stereotype, however, as it doesn't always hold true. Regent University found that a desire to be of service to others and to empower them to grow, which is more common among introverts than extroverts, is a key factor in becoming a leader and retaining leadership. So-called servant leadership, dating back to ancient philosophical literature, adheres to the belief that a company's goals are best achieved by helping workers or customers achieve their goals. Such leaders do not seek attention but rather want to shine a light on others' wins and achievements; servant leadership requires humility, but that humility ultimately pays off.