Medical care back then did as much harm to patients as good.
That's irrelevant.
My point is that medical care (such as there was) did not cost much really, until well, about the time medicare kicked in, pumping the system with dough, which together with medical science finally getting its act together, creating exponentially more and better and more expensive treatments, caused the cost of medical subsidies to begin to reach critical mass, and explode. It was sort of like social security, when the average life expectancy was around 58 or something, rather than 81, or whatever. Who knew it would be a ticking time bomb?