People are fascinated by evil because it's mysterious and it doesn't seem to have a rationale behind it, and the second you say that Hannibal Lector was abducted as a child and he had to eat his sister or something like that, it becomes immediately mundane. The character becomes mundane.
To be free and to live a free life - that is the most beautiful thing there is.
That's why 60,000 people go ape when the Stones play 'Satisfaction.' The songs are part of their legacy, and you fall back in love with them over the years.

