otherwise you're motivating Jill to self-modify into a negative utility monster.

I actually know a woman who was a nice and reasonable human being, and then had a very nasty break-up with her boyfriend. Part of that nasty break-up was her accusations of physical abuse (I have no idea to which degree they were true). This experience, unfortunately, made her fully accept the victim identity and become completely focused on her victim status. The transformation was pretty sad to watch and wasn't good for her (or anyone) at all.