Marx called this sort of thing "the internal contradictions of capitalism"; he argued that capitalism was an inherently unstable structure, just as many writers have argued that democracy was inherently unstable. They might be right. But in either case, the possible fact that one system inevitably gives rise to its opposite doesn't make it the same as its opposite.
I agree that the outcomes of democracy can be bad. But I don't believe that bad and undemocratic are synonymous.
I mean, just look at the jungle of regulations and the vast inefficient bureaucracy of the US healthcare system. Those 15k layers of shite can only happen with just as many corps doing everything to either save their profits or trying to get as large a piece of the cake as possible. Public good be damned.
Say if the US gov planned to add $100 per patient in some grant for whatever reason. How much do you think would actually trickle down to the patient? I'd be like nervously donating $100 to a dodgy charity in a corrupt developing nation in the 1960s.
I think that very little of your hypothetical US$100 would benefit the patient, precisely the opposite of giving US$100 to every consumer in a capitalist market.