@Vincent Berg
Except, in medicine, it's not the standard treatments which are the problems, it's the exceptions, when someone's body doesn't respond as expected.
Individuals are not cogs in a machine, they're often unique, so a 'one-size fits all' approach only helps certain individuals, not everyone.
While this is true, it's also the case that any system that delivers mass services has to be geared towards helping the vast majority and achieving the best overall success. There is truly no other cost-effective option, and resources aren't infinite.
My solution to my unique set of medical concerns is research and conversations with my physician. I actually know more about my conditions than he does, and this is not uncommon, because GPs are, well, general practitioners.
So, I do my research, discuss it at length with him, and, when appropriate, seek help via specialists.
Why? Because I can't simply go to the pharmacist, explain what I need, and obtain it. I have to go through the medical system, with socially-agreed gatekeeping.
Medicine can only work if patients are actively participating in their own care. The fundamental problem with 'modern medicine' is that they do not.
If you are the outlier, you have to be proactive. A mass-care system cannot provide what you need without that. Right or wrong, it's the truth, so long as there are limited resources (time, money, qualified physicians, qualified nursing staff, etc.)