That doesn't mean he doesn't have much to lose if Terri recovers. If she and her records receive honest examinations, I think it will become obvious that Michael et al. were deliberately sandbagging her condition. A creative prosecutor would be able to find enough wrongdoing to keep Michael locked up until the next millenium and if Terri recovers and tells a jury the things Michael has done to her, I don't think a jury would have trouble recommending maximum sentences for all his crimes.
Ah...I didn't think of that. Excellent points.