&gt; He wants to have an impact on the world.<p>Every founder of a billion-dollar company wants to have an impact on the world. The question is whether the impact he wants to have is something that needs (or deserves) preferential tax treatment, as well as the massive public praise he received for this act of &#x27;philanthropy&#x27;.<p>It <i>is</i> true that the wealthy commonly use foundations that they control in order to advance initiatives that also financially benefit themselves or for-profit companies they own. In itself, this isn&#x27;t necessarily a bad thing, but it&#x27;s almost definitionally true that Zuckerberg is using the foundation structure for the tax benefits.