Prairie2: We are warm blooded, we are legion
Let's clear up a couple of things, Geithner never worked for a Wall Street bank. He was Governor of the NY Fed, which is largely responsible for riding herd on the the Wall Street banks, but that business was completely out of control before he got the job.
Now this doesn't prove anything one way or another, but Geithner was simultaneously on the board of the Bank of International Settlements (BIS). It was this body that pulled the plug on the Wall Street banks transferring money between banks in 2008 over their involvement in the selling of a quadrillion dollars ($1,000,000,000,000,000) worth of un-backed derivatives. This effectively froze the US banking system overnight.
John McCain was caught completely flat footed by this move. He said when reporters asked him about the imminent end of Western Civilization, "...the fundamentals of the economy are sound." Obama was not caught off guard, even though he had no experience or training in banking or economics. He seemed completely comfortable talking about it, just like he had been briefed. He did make Geithner Sec of the Treasury, typically a plum appointment given to an ally.
Okay, even if Geithner can't be trusted, Obama's Chief of Staff Jack Lew is himself an economist with experience in banking. He's also worked at the State Department, the Council of Foriegn Relations, Office of Management and Budget, and several other jobs that suggest that he's nobody's fool. He is also expected to replace Geithner in Obama's second term.