Well to be honest, they don’t even know that themselves. I think a better test is the evidence of the volume of insider trading in the stock market, and the manipulation of the market by large houses in order to bait and trap retail investors on momentum plays. Other immoralities are anti-consumer nonsense like penalties for cell phone usage, entrapment into contracts one cannot afford, baiting people into mortgages they can’t manage, the multitude of investment and insurance schemes, and the entirety of the democratic political process which is a race-to-corruption.
Most if not all but a few bankers are too ignorant (and from too low in their class rankings) to have any idea what they are really doing.
I don’t think most politicians know that they are corrupt.