I thought the whole point of capitalism is that you don’t have to answer “should” moralisms about any particular business. Consumers will decide and competition

I thought the whole point of capitalism is that you don’t have to answer “should” moralisms about any particular business. Consumers will decide and competition among vendors will drive down prices. Why do so many outsiders feel so confident that they know better than Grubhub/Uber Eats/DoorDash what their prices should be?