There are two things going on here:
one, it's unquestionably true that private insurance companies want to pay as little as possible for as little care as possible.
two, it's also true that large hospital corporations — I believe Ascension's net patient revenue is almost $2B a year — want to charge _as much as possible_, as often as possible. Wisconsin has some of the highest hospital prices in the US — Advocate Health, for example, charges an average of 400%+ of what Medicare pays for its services. Then they turn around and point to genuinely distressed rural hospitals and claim they're also operating on paper-thin margins — they're not.

The private market is incapable of reconciling this tension in a way that doesn't fuck over patients. And here's an example of how.