I'm just saying you can't prove a quality of life issue (always a slippery slope argument at best anyway) with science the way you can prove other procedures that have a quantitative component. I think its particularly hard in a system where care is rationed and subsidized.
And, here is the worst part of national health, and people should think long and hard about what it would mean in the US to really have it - when you make everyone pay, you give everyone the right to question how their money is being spend. So long as the deal in the US is, it's my money (or its covered in the insurance, which is also your money in a way) I can do with it what I want, you really disallow a lot of conversations about if its 'right' or 'wrong' - and also, the huge conversation about 'if we have X resources, and Y needs, how best to match X to Y to help the most people.'