It depends on what you mean by expensive. In home nursing care is horribly expensive on a benefit per dollar spent. Open heart surgery can be far cheaper relative to medical benefit.

Look at the Japan model where public money is used to drive costs down but there is a side channel for private hospital rooms, in home care, homeopathy, and other things which provide little benefit vs cost.

Basically, everyone get's the high reward treatments, but when it comes to drugs which might possibly reduce your risk for X slightly, well that's up to you.

PS: If it's cheep and does little it's still expensive relative to gain.