Earlier quoted context omitted.
Does that do something to the power relationships in the world? The fact that you're even asking that is a reason we shouldn't have billionaires -- world power relationships shouldn't be based on the wealth of individual citizens. For example, what did Musk really talk about when he met with the president of Brazil? Did he represent American interests, Amazon Inc's interests, or Elon Musk's interests?
Why not btw? I mean, why is it worse for somebody to have power because he worked and invested for decades and made optimal decisions (and probably some luck) than for somebody to have power because he was born into the right family, knows all the right people in The Machine, has nice hair and is able to conceal his rampaging cocaine habit long enough to make himself too big to fail? I get that "wealth gets power" is…
Someone like Elon Musk having political influence is a bad thing because he's raging capitalist that can, will, and does exploit those below him. It's why he has such a love for his Chinese labour force. They have less rights and they will work 16 hour days in his factory making the cars that make him money.
Elon Musk is great as a wealthy private businessman, that's where capitalism firmly belongs. But he has no place in any sort of politics. Countries aren't run like businesses.