I agree. Pelosi seems a most egregious example. I was reading about a freshman Rep this week. One of his key platforms when running was about Congress trading and that they should not etc. He won, and not only has he not sponsored or initiated anything to stop it, he has actually been one of the most proliferate traders - you couldn't make this shit up, nobody would believe you!
BTW, congressional trades did not put that volume of calls in just before the announcement. They are rich, but do not have that level of money.