The rich have exceptional resources to protect themselves. Money is just another form of power.
For instance, even in a doomsday scenario (for them) of the French Revolution, the rich will have personal security guards. These people will be paid very well (relative to the general population), which will keep them loyal enough. They will eat at secure restaurants (similar deal), and enjoy activities in secure locations.
Beyond that, you already see the rich buying private islands (Larry Ellison) and preparing for an uprising (Peter Thiel).
But if you let your imagination run wild, they can even distort the blame, and set up patsies. Owning the media and controlling the narrative (propaganda) is highly effective and already happening in earnest. Plenty of blame is being shifted to immigrants and (because it works, somehow) LGBT+ groups.
I would even say the UHC CEO is himself a fall guy. The buck doesn’t stop at the CEO. There is a step above him. The board of directors is responsible, and they will replace him with another just like him. They are the ones that ultimately choose the direction.
He’s a willing participant, for sure. But the board and shareholders make even more than that.