Because it is. Trump is hoping to surround himself with so much corruption that he insulates himself from it. He wants it normalized so people just become numb to it, as with every other messed up thing he does.
In other words, he wants everyone else in power to have just much to lose as him if the regime fails, so that they don't turn on him. It works like this in NK and Russia.
...or the mob, or street gangs whose initiation rituals usually involves committing a crime to bind you to the group, so you all have something to lose.