Lots of amazing writers, poets, scientists, are terribly flawed, depressed, tortured souls. Hell, even we here on HN debate every day the ridiculous company founders and VCs whose behavior creates interesting enterprises but leads to inevitable problems later.
We seem to want saints who pique our attention, stimulate our fancy, and amuse/entertain us. But as some witty person said, living in heaven with the saints would be worse than hell.