In case you don't see the problem inherent in even your analogy: If the bakery goes away, or refuses to sell further bread to the sandwich maker, the maker is f

In case you don't see the problem inherent in even your analogy: If the bakery goes away, or refuses to sell further bread to the sandwich maker, the maker is fucked. And there's less than ten bakeries world-wide. And if the sandwich maker actually got popular enough that people would only buy from them, then the bakeries would indeed give them the finger.