At least they got caught. Money laundering is big business though. I'm sure there is a lot more going on under the table than we know about.
There are a lot of talented people, it's really sad that they choose to go the easier way to make money. But sometimes they do turn around and that is documented on some movies, for example "Catch me if you can" (I really enjoyed this film).I'll never be able to understand how they can get away with it let alone how they do it.
They must be very good accountants or at least have someone who knows all of this.
Who knows where they learn all this from.