The point is: Give a Federal agency powerful, secret, monopolist powers of investigation, information gathering, intelligence, investigation and prosecution - and don't be surprised if that power gets abused. Lo and behold - it has been abused, for many, many decades.
And nothing was ever done about it because many in D.C. was in on the fraud/corruption. As I mentioned, we all know D.C. was corrupt to the core before Trump ever showed up in D.C. No secret there.