I think the Ben Franklin effect depends on the person willingly performing the favor. The cognitive dissonance arises from the conflict of their own willing action. Subconsciously the thought looks something like, "I don't like this person, but I did choose to help them, so I must not really dislike them all that much."

A punishment of service to the abused is likely forcing the attacker to do it against his will. If anything I think that would make the attacker feel even more hateful towards the abused. The subconscious thought is something like: "That little dweeb got me in trouble. Then they made me kiss up to him. I can't stand it."