Isn't his entire point on this short talk that one can become very wealthy by creating a product that people love and want to tell their friends about? I think it's also a nudge to students at one of the most prestigious universities in the world to consider building a startup. That's it.

I don't think there's anything insidious or controversial or misleading here. It's a simple talk to a bunch of clever students using contrived examples that emphasise this point.