An insurance company CEO was famously shot in broad day light just before he went into a meeting to celebrate his accomplishment of denying people healthcare for his company's profits. Nobody felt bad except other CEOs and the people they directly pay because everyone has a story of the insurance company putting profit over people. They did not get rich by treating more people.
USA HealthCare insurance companies are the _Death Panels_, run by CEO, accounts, and investors, that work to maximize profit over keeping people health. They pay _specialist_ to contradict the actual practicing doctors on why some procedure or medicine is needed.
A firm's sole responsibility is to increase profit and a maximize returns for shareholders. [0]
Then you'd be wrong. Insurance companies are limited to the amount they can collect without paying back out.
It's a fixed percentage. That means the more expensive treatment gets, the higher they can raise rates, and the more revenue they get from that fixed percentage.
Healthcare providers and insurance companies are corporations too: you can get rich by treating more people.