Mercy vs Judgement - Batman Begins

Bruce Wayne takes it upon himself to bring justice to Gotham City, but finds himself at odds with his former mentor, Ra's Al Ghul, a man whose methods of dealing with criminality are more extreme.

Then Abraham approached (the Lord) and said: “Will you sweep away the righteous with the wicked? What if there are fifty righteous people in the city? Will you really sweep it away and not spare the place for the sake of the fifty righteous people in it? Far be it from you to do such a thing—to kill the righteous with the wicked, treating the righteous and the wicked alike. Far be it from you! Will not the Judge of all the earth do right?”
The Lord said, “If I find fifty righteous people in the city of Sodom, I will spare the whole place for their sake.” Genesis 18:23-26