Politics is the process of gaining power for yourself so you can do favors for yourself and your friends. Politics is driven by money and ego. Politics is about winning, and doing whatever it takes to win. A decent person might, perhaps, engage in politics. The winner of a political contest might, perhaps, use the power of the office to do good. They might wash the dirt of the campaign off their hands. But politics itself does not (and cannot) serve any common good or any moral principle.