How we cite our quotes: All quotations are from The Dark Knight.
Quote #7
LUCIUS FOX: You took my sonar concept and applied it to every phone in the city. With half the city feeding you sonar, you can image all of Gotham. This is wrong.
BATMAN: I've got to find this man, Lucius.
LUCIUS FOX: At what cost?
BATMAN: The database is null-key encrypted. It can only be accessed by one person.
LUCIUS FOX: This is too much power for one person.
BATMAN: That's why I gave it to you. Only you can use it.
This is pretty solid proof that Bruce Wayne will always stay on the side of the angels. Let's face it: he's pretty darn self-sufficient, and as one of the richest men in the world, he generally makes his own rules. We've seen what happens to people like that in the real world. They tend to think that only they can properly use power like this. But Bruce is better than they are, and he trusts Lucius to wield this device judiciously, this one time, to catch the Joker. When they're done, Lucius destroys it… and Batman's principles mean that the Caped Crusader is more than happy to let him.
Quote #8
LUCIUS FOX: Spying on 30 million people isn't part of my job description.
Fox is that all-too rare figure: a CEO with real scruples. Hence, his balking at use of this colossal Big Brother device that, shall we say, tests basic notions of privacy. He's also reminding Bruce that even Batman can cross the line, and that doing so wouldn't be in the best long-term interests of Gotham.
Quote #9
BATMAN: What were you trying to prove? That deep down, everyone's as ugly as you? You're alone!
Batman 1, Joker 0. When the passengers on the ferries ultimately decide not to blow each other up, it delivers the proof that Batman needed: the better angels of our nature can prevail if only people see it.