http://2.bp.blogspot.com/-nkdzCkw8Rr0/U-qiPe1Tf-I/AAAAAAAARS...
I'd suggest that's a much more direct and obvious economic impact than some maybe-perhaps about driving investment overseas. (How, exactly? Do you think money would suddenly stampede out of the US if regulators developed a spine and jailed the delinquent operators who caused the crash?)
Anywway - clearly the decision was political. It was made for the benefit of the banker caste, and not for the general population.
The underlying problem is unearned privilege.
There's no rational reason for these bonuses. But bankers pay themselves these sums because they know they can, irrespective of the incredible damage they cause to the rest of the economy.
But when reviewing the decision afterwards, I think we need to reject lines of argument that the government did really great on the deal so it's not that bad what happened. We don't want it to happen again, we don't want to be in a no-other-options situation.