Among the fundamental principles of any functioning justice system is the following: don't lie to a judge or falsify documents submitted to a court, or you will go to jail. Breaking an oath to tell the truth is perjury, and lying in official documents is both perjury and fraud. These are serious criminal offences, but apparently not if you are at the heart of US' financial system. On the contrary, key individuals there appear to be well compensated for their crimes.