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 ?
First let's stop with the Satoshi argument, we really don't know how much he had, or what his Bitcoin address is, there could be more. Second, it looks by now that he doesn't care about his Bitcoin right? He might not touch it for the rest of his natural life (if he is still alive). Third, there will be no comparison, let those rich personalities compete against each other. For Bitcoin addresses, you might want to check this,
https://bitinfocharts.com/top-100-richest-bitcoin-addresses.html
And maybe you can find who owns the richest Bitcoin address, hint: It's crypto currency exchange. Let the Satoshi comparison rest in my opinion. He hasn't re-surface for many years and let's just respect it.