Hitler wanted to be a fine artist - he was okay just doing standard stuff, but he thought he was too special to be a commercial artist. He had a somehwat odd family background, but obviously not everybody with an odd family background turns into a sociopathic monster. He seems to have had a sense of entitlement, however, and if he didnt achieve something, it wasnt because of his failings, but because of a conspiracy against him.
He took over many more civilized and intelligent people in order to carry out his grudge, but it seems that throughout history, there have been people like him. And they attract followers with imaginary grudges. Thats why I dont think we should scoff at the possibility that the ignorant, semi-nuts but very ambitious Occasional Cortex may be the next Dem presidential candidate ... even though she wont be old enough...and may very well win.