They are mathematically the most corrupt industry according to open secrets all time lobbying data.
Physicians are the richest profession in the US, and limit their supply by weaponizing the ACGME/AMA.
Hospitals/clinics make so much money. We own one, and while it was slow to start, the profits are insane. Marketing is the hardest thing, once a patient comes in the door (and they don't have medicaid) its pure profit. Don't let anyone in healthcare let you think margins are slim.
Pharma... we all know pharma.. (And pharmacists in 2023? Heck ML/AI will always be better than trusting that a pharmacist is on their game 100% of the time)
Insurance, I have no idea how they waste so much money and have slim margins. Anyway they are weirdly allies most of the time because they will adjust a $400 bill down to $125. But they also suck with how expensive premiums are... again. what the heck is going on with their slim margins? Maybe its their ultra fancy buildings.