Abuse is not rehabilitation. You can't teach respect via abuse. Another thing is, that many kids sent to programs are NOT bad kids. They are neglected, different, or oppositional. I went to a program. I was depressed and could not stay in school. I also had some traumatic experiences. I was a not a druggie, a liar, a whore - I never even stole anything! I did not deserve to be manipulated, lied to, emotionally and psychologically abused and exploited. I did not learn to respect or value myself at the program. I learned to shut up and take the abuse.
Honestly, the inquiry itself - "abuse as rehab" is just insulting.