No, he's dead. He's free from any prosecution, never having to answer for his actions, and all his money gets to stay in his family. Literally the easiest way out, and the only people who benefit from this are people who are already wealthy off of health insurance CEO money.
This is a significant warning to politicians and lawmakers that if they don't do something soon to address the rampant corporate greed and rapaciousness this sort of thing will start becoming more common and eventually the mob will be coming for them as well.
No, it's a warning to corpos to start hiring security. That's the only change that will happen. They're just going to make themselves harder to reach. Vigilantism rarely ever results in any meaningful change, and even more rarely does that change benefit the victims.