The idea that a business is morally blameless to act in any way as long as it A. improves profit, and B. is within the law; and that everybody must limit themselves to voting with their patronage and are somehow wrong to e.g. voice criticism; is obviously, intuitively false.
Closely related: The idea that a market-priced transaction is fundamentally neutral and creates a moral and ethical firewall between both halves.
Satirical example: "Okay, so maybe we knowingly sold guns and mustard-gas to the Elbonian death-squads which they used to kill millions during the genocide, but it's not our fault they were the highest bidder. You can't blame us for a perfectly moral transaction because all parties made a voluntary agreement to exchange goods. In fact, it's people like you who are the real evil ones here, trying to infringe on my right to do whatever I want with my property!"
