The answer to that is kind of boring and simple—because everyone involved would go to jail for a very long time. No employee would do this to benefit a corporat

The answer to that is kind of boring and simple—because everyone involved would go to jail for a very long time. No employee would do this to benefit a corporation, because it's not the corporation that is going to be doing a decade or two of Federal time as a result of being caught. The problem with trying to extort Congress is not just that they have subpoena and investigatory power, but that the crime is inherently political and will (quite rightly) bring the hammer down on you from the entire apparatus of the state.