Sure, sure, we can go on and swear about the damn lies and statistics. We can argue that poor people shouldn't get treatments because they are poor, or rich drug companies need encouragement to do R&D, or everybody should be treated equally, etc etc. There are a million arguments to be made. Perhaps the heart surgery done for a fraction of the price also doesn't need expensive insurance for malpractice, or maybe it fails at .5% of the time compared to .1% of the time and that .4% is 99.9% of the cost. There are tons of things going on.
But when we come down to some of the cases, like HIV/AIDS in africa, we realize that lots of the dogmatic statements about who should be cared for are not a question of better/best - they are a question of good/bad.
There is medical care which is anti-productive for society. In particular, things that cure symptoms but leave people infectious tend to cause epidemics. Imagine a case of malaria that forces the person to stay inside all day, under mosquito netting (this isn't really the way this case works..., I know). If you treat the fever and the person walks around and gets bitten by mosquitos that pass the infection, then treating his fever just caused more cases of malaria, with all the pain and suffering that causes.
This is the case of intermediate quality nursing care for Crimean-Congo hemorrhagic fever (CCHF) or cholera. The proximity of nurses to cases causes a spread of the disease. It would be better to have great, aseptic nursing care - or none at all. But some care is worse than nothing.
Same with AIDS. Currently we are making sure that Africa will die, as a culture and a continent, by getting people strong enough to be 'functional' but also leaving them infectious. If we treat them, frankly, we need to monitor their pill taking. And to do that, we can't have them migrating all over from city to city or working as truck drivers, etc. We can't have them working in the sex industry or raping people. We need to have them monitored, and in africa, that means confined.
It would be better to not have them treated than to make it possible for them to spread the virus.
The AIDS care without abstinence, at least between infected and uninfected (and don't we know the uninfected parties often have no choice?), is an irresponsible, genocidal strategy.
So lets stop arguing about whether care 'costs too much' or whatever - we should first start by doing no harm.