In the absence of taxpayer funded healthcare, insurance companies are the only ones negotiating pricing and protecting their customers from being fleeced.
Medicare might pay the least, but I assume they must still be a net profit center if healthcare providers accept them.
Clyburn, the congressman from South Carolina whose endorsement arguably delivered Joe Biden a landslide victory, has received millions of dollars from big pharma [0]
[0] https://khn.org/news/democrats-taking-key-leadership-jobs-ha...