People keep saying that the macro-problem with for-profit medicine is that the financial incentive is to go on treating the problem forever without curing it, but it seems to me that this also applies to car mechanics, contractors, janitors, and basically every other profession that ever fixes anything, ever.
But assuming it arguendo, it’d be the same sort of argument against for-profit medicine as Upright Sal’s Transmission-O-Mat paying a mechanic to sell overpriced replacements is against for-profit car repair.
Isolated examples are isolated. Every business has its crooks.