Ray Bradbury was the first author that I was really exposed to back in grade school. I'm a big Philip K. Dick fan, but the emotion and humanity that Bradbury brings to his stories and the way he uses sci-fi to get at the human heart is something that's unique and for me incredibly influential.
The importance of the arts to the societies in which they thrive is well documented.
I think it's a little simplistic to explain a work through the psychology of its author. In other words, that Haneke has emotional problems, so I don't have to take his films seriously. By using this argument, the viewer retreats from the challenges of the film.