Luck always plays the biggest role. Maybe the billionaires would have always been successful in some way, but not be a billionaire or even a millionaire.
Also, your argument sounds like a just-so story designed to support the status quo.
> the imbalance in wealth attraction will remain inherent.
Is is really a good idea to be ruled by the people with the greatest "wealth attraction?"
> Then you might ask, if that's true, do you I want to enforce equality, potentially dragging down the economy to mediocracy (for example many stagnating European economies) or maybe accept that current nature does not meet our societal desire for equality.
Yes, because regardless of anything else, the wealth imbalance has been politically destabilizing. Your comment strikes me as out-of-touch quantitative thinking: making certain easily-measured numbers going up the highest goal, while ignoring other things that are harder to quantify. That's a blind spot shared by a lot of people, especially tech people.