...by allowing fangirls to be stupid by buying him gifts even though he's richer than his fans.

Is it ethical? Probably not. Is it smart? Definitely. I don't know what goes on through the mind of a celebrity, but maybe they see fans buying them gifts as a payoff for having sasaeng fans follow them around and have their underwear stolen when least expected.

The jacket that a fan bought him.

The tickets that a fan may have bought for him.

Well, netizens, instead of bitching, take corrective action and stop buying gifts for oppa when it's not his birthday. Mind-blowing revelation, I know.