"It's a kingdom of conscience. Or nothing."
--Balian of Ibelin (Kingdom of Heaven)
Have always found it interesting to observe how people rationalize behavior related to politics that they would never engage in elsewhere.
"It's just the political sausage being made."
"The ends justify the means."
"We're doing it for the greater good."
"I know my party's candidate has major flaws, but the alternative candidate would be far worse."
Conscience is compromised. And things get worse.