In the US, it may also derail attempts by banks to water down the post-crash prohibition on how they trade for their own benefit in the drafting of the detailed rules for the implementation of the so-called Volcker Rule.
Many rules have come out of the Dodd Frank legislation, but the Volcker Rule was the one that prompted Occupy the SEC to weigh in on the regulatory debate, showing the rule is not just powerful as a profit killer, but also as a symbol of financial services reform.