A company is like an orchestra. It can have diverse players with different instruments or gifts, but they all need to synchronize to the same tune. Harmony would be impossible were it not for the contribution of all the players. An effective leader is able to harness the individual talents into a unified force. This happens through creating a common or shared vision, knowing the individual strengths and valuing the diversity.
Everyone has a gift and we all bring different gifts to the world. A good leader is able to capitalize on this.
Diversity is an opportunity to harness creativity instead of being a source of frustration.