> I think thus it's very easy to guess that Elon would not be a hundred billionaire, or billionaire at all, if he was the exact same brain born to some working class family in south africa.

There are many brilliant people in South Africa who are born into wealth and none of them have reached the same heights as Elon Musk.

Even if it were the case, wouldn't your argument then predict that there would be many people MUCH wealthier than him because they were born into the vast riches and privilege that is America and Europe?