The social safety net relies on both altruism and self-interest. We trust that getting people into housing will improve their lives, but we are also looking to

The social safety net relies on both altruism and self-interest. We trust that getting people into housing will improve their lives, but we are also looking to improve their interactions with us. I don't care whether the guy who smells like piss and lies beside the supermarket door has earned a room. I would, however, like him to use the shower and laundry attached to the building. If he isn't doing those things even though he has a home now, then we're down to altruism rather than altruism + self-interest.