Don not be fooled. Ego is the killer of minds, the destroyer of common sense, the anhiliator of empathy. There is no success with Ego. It may look like there is (a lot of businesspeople have huge ones) but there isnt. Not really.
Ego is a poison that feeds on the weakminded, no matter how successful they are. They will live and die to pretend to be better than others, and that, in my opinion, is a useless existence. That is because instead of chasing the things you are pationate about, you chase the competition of being better than others in every single way. You neglect your passions for competition, and no matter what you will always lose in the end.