look i know people in show biz, artists and music. at least half of them are crackpots! they some kind of psychological disorders which is why they cant hold on a proper job. most of them live away from family and have very limited number of friends. many do drugs and other stuff to relieve stress from doing long hours of shooting. This is more or less true for artists from all countries.
also many of them are homos
A gross generalization.
Such disorders can be found in people from all walks of life. From a suicide bomber to a corrupt bureaucrat to a house wife. there are good and bad people everywhere.