The continual growth of large corporations to challenge the power of governments has been in the making for at least 2 hundred years, with joint Anglo-Dutch multinationals in the previous century taking the lead. The Washington Post journalist Morton Minzt in the book America Inc in the 70's documented this history with integrity and accuracy.
American corporations were focussed on the growth of the domestic US market, and US banks were largely provincial with limited international reach in the early 60's. The mergers and growth of the now massive US multinationals started when they discovered the need to export and compete with the integrated Japanese zaibatsu, such as Mitsubish Heavy Industries, and old European multinationals and international investment banks, particularly when China started to open for business. You can remember the failures of the US auto, electronics, steel, ship building, and clothing sectors to compete globally. In the resulting tooth and nail competition between the largest US banks and European banks to aquire everything left in private hands, size matters, and politically was seen as an issue of financial national security and survival. Governments take their own national economic interests as their first priority, and in the international competition for control of global markets and resources they see this as a security issue. Thus the US deregulated their investment banks, allowing them to grow so that the could compete with non-US investment banks.
The alternative could have been for international governments to make agreements to regulate multinationals and limit the size of global investment banks.
Listening to the Bank of America CEO waffling at the Davos media event on prime time cable last week was indicative of the influence that banking now projects into all financial PR media. For alternative channels we have to look elsewhere.
I don't see how Washington can return fiduciary integrity to the political and judicial parts of it's government, for example to hold themselves accountable for their actions illustrated in Steve's post above. It seems in part to be an issue of the US electorate's values; freedom of action for individuals is preferred over fairness for individuals. This to me seems to be a preference based on the electorate's wishful view of the world as still a very large place where the consequences of actions will not come home, or can be prevented from coming home with lots of hardware.