You are pointing out that for the most part investors function as a collective with demands for industry 'normal profits' that essentially make the entire marke

You are pointing out that for the most part investors function as a collective with demands for industry 'normal profits' that essentially make the entire marketplace act as though shareholders are a single collective owner. Amazon just happens to be the only company which the investor collective allows to actually compete, something which otherwise doesn't happen unless a company is at risk of failing.