If you’re in a certain line of work, and I bet you are, then your main concern about things like the Volcker Rule and increased capital requirements for banks is that they might reduce your comp. If you’re in that line of work, you’re also probably the sort of person who has a higher than average aversion to having your comp reduced. However, you’re also the sort of person whose comp everyone else would be happy to see reduced, because you make too much already you greedy jackass.
That poses a quandary because nobody’s all that interested in hearing your arguments against the new rules, even if they’re good arguments and not 100% about your own personal remuneration. One thing you could do is get proxies to make your arguments. If you think that the Volcker Rule will reduce liquidity in foreign government bonds, you could suggest to foreign governments that it’s really important that they lobby against the rule on your behalf. You did that. Good work. Let’s see how it turns out. If it turns out well, the next step would be to get other clients to say “well, we want liquidity in our [stocks/bonds/rate swaps/whatevers] too,” since that would then be a more compelling argument.