I would agree with you in general but this is probably not the best example of it. Sergey Brin and Larry Page own a majority of the voting shares at Google. So even though it's technically a public company, it's still for all intents and purposes their company. It's the same story with Zuckerberg and Facebook which is why things like 'shareholders calling for Zuckerberg to be replaced' don't really mean anything directly. If every single shareholder except Zuckerberg voted to replace him, he stays. Consequently the actions and behaviors of these companies strongly reflect the views and desires of these individuals.