Our public education system's refusal to invest in ethics and morals training has created a society willing to tolerate that behavior.Yes. I believe it’s always been corrupt. A singular answer to your question is money as the cause. Going deeper than that is personal gain (politician) and not operating in the interest of their constituents. I cannot explain how nearly all politicians go into office with average wealth and leave worth 10’s to 100’s of millions of wealth and have the income of an elected official. They get onto the ticket because of 100’s of millions spent on campaigns so they may be elected. Those same heavy donors want ROI. And they get it. And the politicians get paid. And the only question is who isn’t on the take. It’s corrupt.