To make a real impact in your work, and on the world, you need more than one type of person. That sounds obvious, given our understanding of the importance of diversity, but we need more than differing perspectives, we also need differing personalities, and there is a simple way to think about it that can help you build a successful environment around you.
The moment I began to understand how I fit into these three simple types, it gave me an entirely new perspective on my work.