> Even if a rich person reinvests everything, the control over large amount of money is what makes it problematic.

What about the control that out-of-touch politicians and bureaucrats have over large amounts of taxpayers' money? Shouldn't we find that far more problematic overall?

> There is no need for a "capitalist" (owner of the enterprise) to insert themself into the process, they are useless middlemen who get a cut, essentially.

Then why do newly created enterprises almost universally seek outside capital investment? Sounds like there is a need after all, otherwise you could just have a partnership structure and take no outside money whatsoever.