No one's responsible.
No one's to blame.
No one's going to be punished in accordance with their misdeeds.
But we can pretend.
The U.S. government is said to be preparing to sue some of the nation's largest banks for their role in the housing bubble that popped in 2008. These are the same banks now sitting on massive amounts of cash handed over by the U.S. government (read taxpayers) because the banks were "too big to fail." It strikes me as reasonable to assume that any penalty levied against those banks (none of the guys wearing cuff links are going to jail) will be paid back in money the taxpayers gave them in the first place. How's that for a sweet deal?
Is it any wonder that in the old west, horse thieves were simply hanged?