Genius isn't enough. In fact, it can be a detriment in the right (wrong?) environment resulting in stunted emotional and social development. The problem with geniuses is that they tend to think their aptitude is enough to grant them magical ability to be correct. It takes experience and humility to learn that it's not the same, but a life of being pampered and put on a pedestal limits the genius' opportunity to learn this life lesson.

The self-serving genius is roughly equivalent to the pychopath. Once you begin to look for these antisocial behaviors among so-called geniuses you'll see a frightening pattern.