No? I'm saying that power concentration is pretty much unavoidable. The question is more about what they can do with that power. I suspect that people getting more power through wealth in the modern world is better than people concentrating power through politics.
I don't think it's unavoidable. I don't see why you couldn't have a relatively weak government that's otherwise pretty laissez-faire besides taxing the hell out of extreme wealth. And a strong government doesn't have to have extremely powerful individuals. Power can be divided, and representatives are ultimately accountable to the people.
What you're saying basically boils down to: kings are inevitable, might as well choose them by economic success instead of the more old-fashioned approaches. I reject the first part.
> I'm saying that power concentration is pretty much unavoidable.
It's avoidable by formalizing the execution of power. The head of state is very powerful, but he can't create laws or anything. That all needs to be done be the parliament, which is several hundred people.