What the bankers are going is extortion: "give us more money to lose or your economy gets destroyed." In 2008, the government made it clear that they did not have the stomach to risk a much deeper, but shorter, downturn to hold the bankers accountable. That bailout, as well as related programs, such TLGP, which guaranteed bank bonds through 2012, made it financially and cognitively harder for the politicians avoid future bailouts. (Consider how hard it is for people to walk away from a losing investment.) Once then-Senator Obama voted for TARP, he became beholden to the bankers whether he knew it or not.
The bankers have every incentive to allow or create more "crises" so that the taxpayers will shift more of the banks' losses on to the public. The endless media campaign justifying past bailouts, and warning of the risk of discouraging future bailouts, are intended to prepare the American people for this fact.
There are two historical precedents that may apply here: Barbary pirates and the Cold War. In both cases, the other side's demands for endless concessions were stopped by showing the other side that they had something to lose and that American people were willing to sacrifice to make sure that they did lose. Unless modern Americans are willing to sacrifice to show that the bankers can lose everything, the endless bailouts will continue.
If early 19th Century Americans had, instead of deciding "millions for defense, one cent for tribute," continued to pay the Barbary pirates protection money and allowed them to abduct our citizens as White slaves, we would still be sacrificing to bailout the pirates and their business model. Every time they needed more money, they would create another "piracy crisis."
http://economistsview.typepad.com/economistsview/2010/10/the-worlds-financial-system-has-become-unstable.html