I would argue that the people regulating the stock market should not be allowed to own stocks or any other sector investment, like an ETF focused on the health care industry. THey should still be allowed to own index based investment vehicles like an SP500 ETF.
Hmm. Given that in order to retire in the US you must invest in the stock market that would be a big requirement. Don't get me wrong, I am all for solving this problem, but simply not allowing the SEC employees to participate in the market would be a pretty good way to ruin their retirement.
An alternative would be to instead provide pensions. I don't really see how that happening given the "no handouts at any cost" attitude of the majority party in the House.