It seems that the majority of commenters here did not, in fact, RTFA.
Let's not have the facts get in way of a prevalent collective delusion, though: that when every incentive and opportunity for malfeasance exists, bankers will consistently "do the right thing" in spite of pitifully lax enforcement.
No, the pristine ideals of the ultra-rich financial engineering class are incredibly robust, and it's lazy self-serving government bureaucrats whom we should be most concerned about.