The CIA wants this type of activity so that the regimes in Central and South America are habitually weakened and always in need of some form of welfare from the USA. Like I know it sounds crackpot and tinfoil hat quality to say this stuff but the last 60 years basically prove it to be so. Any form of advancement that occurs within these countries has an almost direct economic impact to the USA where the cost of things goes up as the quality of living goes up in these countries. Its in the USA’s interest to keep these countries poor. How else are they supposed to get cheap labor?
Biggest change we can make to the whole model is making it non-profit. Hospitals should be patient first in all instances. That is probably the biggest hurdle to clear and then a bunch of the other issues you mentioned will actually be easier to solve. Right now there is too much private equity involved with insurance, hospitals and medical care in general. The costs associated with medical care are outrageous and also need to be addressed.