I don't remember the exact wording, but "if you're going to do many evil things, do all of them at once" really has shaped how I organize myself when I need to screw people.
Non ironically I think that's a great book for anyone working in a company.
If you go this route, read Anti-Machiavel at the same time, by Frederick the Great, a chapter by chapter rebuttal written just prior to him becoming King of Prussia.
