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.
“Told that the passing grade is a B or competence and that we will help you to get there, students do competent work. The lowest passing grade in the real world is competence. Why do schools accept so much less?”
“It was kind of like they were just giving us a toy to play with, to do whatever we wanted with.”