The narrative behind this story just shows you how legally and illegally corrupt and unfair the entire system is, and how the media and regulators happily stand behind it.
I don't think politicians are making more money than the hedge fund managers. Why would you think that they have more knowledge than the hedge funds? Likely the hedge funds are managing their money. These congress people are not sitting at home in front of a Fidelity account and making trades after they hear from a lobbyist about big market news.