Because the dollar bills in your eyes keep you from seeing anything Linda
Therein lies the base of the problem, the “dollar bills”.
Imagine what government would be like if lobbyists weren’t allowed to buy votes, if there were term limits, if elected officials income’s were restricted to the salaries of the elected office, if Senators were once again elected by the States - - - and all the other “ifs”.
DC is like Chicago. Chicago was not always corrupt. Add to Chicago the mobster rule during Prohibition and it never went away, just changed it’s format enough to stay alive and well. Keep a democrat in charge and Chicago will be corrupt for eternity.