OCD can sometimes be a useful trait as a leader, and ADD and ADHD are controllable learning disablilities. Psychopathy and Sociopathy are serious Antisocial Personality Disorders. Psychopaths aren't violent like sociopaths, but they maybe incompetent in their positions as leaders, charming and manipulating people into doing the work for them or tricking them into overlooking the fact they (the psychopath) can't do their jobs. And on top of it all they don't care about the people who work for them or the people they work for one bit.