I do believe that. But your choices has diminishing effects over long term. And also, in a meritocracy the "profit" needs to be congruent to the merits.

I think there is a broad consensus that talent won't make you a billionarie in the stock market, otherwise we had seen many more people become billionaires in the stock market.

If you really believe that that the person in question got billionaire on the stock market by their merits that’s just wrong.