I wish more people understood what "The Administrative State" is and its history.
Because the "oligarchy" people complain about isn't the cause of massive government corruption.
"Oligarchy" is the natural result of creating a massive politically controlled administrative bureaucracy in charge of most aspects of the business regulation, banking, and so on and so forth.
That is if you want to ensure a powerful oligarchy making decisions for the country the first step in accomplishing this is to make a big and powerful government to regulate the economy.
That is how you get all powerful billionaires.