Evil characters are usually more memorable to audiences because you
don't see them every day. What you do see are people trying to get by
and be socially acceptable and follow most rules. I mean, nobody slows
down on the freeway when things are going well. They slow down when
there's an accident, to see if they can see some blood. Nobody reports
good stuff on the news, they report bad stuff. The bad news is more
distinctive, it shocks us.