Fallen...Blackguards?

[Sardia]

Well, it should be harder to go from evil to good than vice versa. Evil represents self-interest and greed, which are far more natural than sacrifice and altruism.

That would seem to imply that the majority of the NPCs that characters interact with would be evil, then. Merchant? Evil. Barmaid? Evil. Ship Captain? Evil, along with his evil crew. Most political structures and clergy? Evil to the core.
If it's far more natural, shouldn't it be far more prevalent? The Paladins are going to get a workout...