I'd counter that taking it in this direction can actually help you get more honest with yourself about what value you can provide. For example, if you don't have wealth or privilege behind you, you may should maybe focus being the technical founder rather than the CEO in a start up situation. if you buy into the myth that everyone has an equal shot it can be quite discouraging and at the same time mystifying as to why things aren't working out. If you have a clear sense of ALL the inputs that your favorite startup success had going for it, then you can make informed decisions about what you have to offer and what you are likely capable given your particular set of inputs and resources.

True but that doesn't mean someone shouldn't even mention it.

It also challenges people to think how to structure a society that maximizes peoples ability to work at this level. The folks who figure out how to put 'everyone' in a position to make successful startups with have contributed orders of magnitude more value to society than any single startup.