In my experience there are two types of leaders: those who build alliances across the span of their career and those who leave casualties in their wake. It’s always a pleasure to work with people who operate in the former category. Leaders require followers and the more people who see themselves in your camp the better. At the end of your career, you will hopefully be able to look back and see many lives that you have changed for the better and a large number of mutually beneficial relationships. Approaching life from a win-win perspective just makes plain common sense.