Just as someone who has an inclination to spill blood should consider a career as a Shochet, someone who has an inclination to lie and cheat should but those traits to good use, and become a politician.
Being a shochet is holy and admirable, even when spilling blood, lying, bluffing, cheating and distorting the truth is loathsome and dishonorable, and even being a politician does not excuse those repugnant behaviors.
That said, akuperma is correct in describing politicians.