Could it be that the Wall Street guys were also emboldened to run rampant because they also knew that the public sector relied heavily on investments in the crooked game that they were playing? Thus they knew well ahead of time that when the house of cards they built was going to fall, that the feds would have no choice but to bail them out because of these pension investments?
Thus the reality being that the public sector appetite for funding so far exceeded the taxpayer budget base that risky and unrealistic returns were needed on investments just to stay afloat?