If someone else treats the cause, how will they sell ANY medicine?

Seems the solution is to compete them out of a market. Perhaps through a completely different model, based on education for self sovereign healthcare built around personal responsibility.

Just think of all the people focused on treating lung cancer who got screwed over when people stopped smoking in such large numbers. That they've largely replaced those habits with other bad ones probably means they're not at the soup kitchens just yet, but scale that sort of movement and these charlatans may end up being put in their place yet.

That said, I doubt there'll be any shortage of people making poor decisions. As P.T. Barnum told us, there's a sucker born every minute. Probably more frequently now thanks to the information superhighway, which $TRUMP seems to have confirmed most recently.