Currently, person with highest amount of bitcoin in the world is Satoshi Nakamoto and he is the 12th richest man in the world. Can his number one spot be taken by some other person anytime soon ? Who can be that person to replace Satoshi ? Elon Musk ?
What lead to you thinking Elon musk will be the person ? we have Michael Saylor a bitcoin guy that buys and market react to it you haven't thought of such a person and you went straight to mention Elon? someone who only wanted bitcoin for customers to patronize his business this are not true bitcoiners, if you see one you will know.
Perhaps whoever is able to buy more bitcoin than the speculated amount that we assume Satoshi holds then the person is such a genius or probably the next richest in the world, it's not debatable if bitcoin can hit a million price.