Well, who decides what the "greater good" is and how to achieve it? If the BitCoin exchanges get together and decide on a set of standard procedures and policies that are in any way enforced or monitored, then voila: "Governments are instituted among [BitCoin Exchanges], deriving their just powers from the consent of the governed", aka "tryannical political institutions" and regulation.

I think the Bitcoin community at large has a certain set of values that it regards as sacred (security, anonymity, freedom from state regulation)

Perhaps I'm wrong though.

Regulation is often associated with political states and are often enforced through brute force. I think if we could, as a community, regulate without any state intervention that would be ideal.