Understand that what Presidents say in public is very different from what they do in private.
Why anyone would expect Obama to carry through such threats when his staff has mostly been from these very same groups is beyond me. If anything its more like, you guys are going on pikes unless you play ball, here let me connect you to my campaign finance coordinator. Geitner protected his buddies. The real collapse would have been the money available to the various campaigns that eat it up directly or indirectly.
Washington is the one percent, they own Wall Street more than Wall Street owns them. They excuse themselves from insider trading, tax issues, and the like. How are the executives at Fannie and Freddie any different from those at other lending groups? Simple, they have/had better political connections.