What a weird take, as if someone building cars is prevented by them also selling supposed pet rocks online. Lots of people, Musk included, made enough money from throwaway startups to then work on the bigger problems, as they're actually financially secure to do so at that point, the Maslow's hiararchy of needs in action. If you don't like someone's product, don't buy it, but if other people find them useful, good for them and good for the creator.