Yes, that's counterintuitive...but one is cheaper than the other. And there's the rub - you do pay. One way or another, you pay anyway. You can pay more for cops and courts and prisons...or you can pay somewhat less for apartments to give them a place where they can take a shower, wash and iron their clothes, and get a job.
But you pay anyway. Do you want to pay more for the stick...or less for the carrot?