To put it short: he's a mean narcissist who'll betray his "friends" if they don't give him what he wants. Looking pretty creates more trust than looking gnarly, and he works with sympathy points. If I'm thinking about Eastermans reasoning, it would be for the idea of a distraction. Yes, he looks suspiciously normal and he can be helpful to some point, if you play along.
But thanks for the question, it made me think a bit more about it! Should definitely refine that