The US system is absolutely lousy with corruption and ends up diverting a large amount of money toward marketing which is rather baffling - whether a treatment is appropriate or not is a decision I'd rather my doctor made on the basis of efficacy - not because one of the companies had a catchy jingle or because one of them recently took him out to lunch.
Hospital administration does cost a fair amount, but be careful here - it's like education - some of those administrators have moved up the seniority chain to positions where they essentially do nothing and get paid for having their ass in a chair - but a lot of that administration goes to fighting against the extremely aggressive tactics of insurers and manufacturers. While those administrators would ideally be unnecessary due to better regulations being in place they do provide justifiable savings for the hospital (it's cheaper than not having them in many cases) under the current system.
It's all really complicated and murky.
Pharma companies enjoy a profit margin averaging 26%, medical device companies 12%, and hospital groups (which includes non-profits) 8%. Insurance companies are closer to 3%.
https://www.americanprogress.org/issues/healthcare/reports/2...
Healthcare in the US is a scam. There's no other way to look at it.
Because they don't have to pay for their education. Governments there recognize that having lots of doctors is a public good and don't saddle them with hundreds of thousands of dollars of debt from medical school.
Doctors aren't the ones who pay that medical school bill (if they get a job). It's their patients who pay the medical school bills.
The problem of medical expenses in the US is a very complex one. It's essentially at the nexus of a whole bunch of problems with our society. Higher education is too expensive. We have too many middlemen. Strong intellectual property laws make drugs and devices expensive. Patent laws make evergreening more profitable than innovation. Intense regulatory requirements for approval make competition very limited for pharmaceuticals. The government doesn't maintain control of the products resulting from the blue-sky R&D it funds. etc etc.