Everyone needs hobbies. Collecting is popular. Some collect stamps, coins, or comics.
He collects wigs.
Actually, this is kind of better in context. That’s a politician who doesn’t like Batman because he hides behind a mask, which is dishonest. Batman’s reaction is to publicly embarrass the guy by showing he wears a wig.
Yes, because vainly hiding baldness is exactly the same as being a masked vigilante.