It's easier to make a villain out of McKinsey than it is out of Congress. While it's true Congress is universally disliked, the discussion devolves into opining about my-team-versus-other-team, even though teams spend a great deal of time with lobbyists and fundraising. And even that point faces the critique that "both sides aren't the same", which sure, they aren't identical, but the means for securing influence are the same. None of us have pre-conceived notions about how to 'fix' McKinsey in the way we would with Congress. How to implement preventative measures that would block deeply unpopular policy from becoming law in the first place conjures discussions of first amendment rights.