It's very different from food: While the majority is not emergency, the majority IS chronic conditions, which are not comparable to food:
If McDonald is too expensive for you, you can switch to Ramen.
If Insulin is too expensive for you, what do you switch to?
If Radiation therapy is too expensive, what 7do you switch to?
If Dialysis is too expensive for you, what do you switch to?
If psychiatric drugs (for bipolar disorder, or schizophrenia) are too expensive for you, you lose the ability to be part of society.
Totally unlike food, despite being non-emergency.
The moment you have patents on drugs (which you do), and a $400M cost-of-bringing-to-market independent of the resarch (which you do), it's not a free market. Totally unlike food.