The Shadiness of Politics

Most likely politics has been corrupt since its inception. Secrets, lies, deception, and conspiracies probably longer. I believe there are good politicians that want to do right by their constituents, but many others do not care about their oath and constituents. Most politicians become rich beyond their salaries, investments and donations. If that were me I know the IRS would be all over my ass. So, why in todays political environment do these lies, betrayals, and conspiracies come to light? In my opinion, it's lack of good morals, no commitment, and greed.
Lack of morals for getting involved in the shady activity in the first place. No commitment, because once you agree to the principles of the shady activities, you should be committed to them, no telling. Loose lips sink ships. Lastly, greed. If someone is willing to do or be involved in shady shit in the first place, then they are shady enough to betray the cause and sell it out.