Stanton is giving up the rats because that's what rats do to save their own ass. All of his close business associates are drunks, liars, cheats and thieves, living in a world full of troubles.
I would have to imagine that if the IRS looked at each of them they would be in a world of chit. Who better to explain to the IRS how each one of these scum buckets hid money and didn't pay their taxes then the leader of the pack Stanton, who is looking for a reduced sentence, so he don't die in jail.
I for one am planning on taking a vacation to come down to Tampa to throw a big party outside the jail when all of the rats have been caught and locked up!!