good & evil vs. chance & chaos in "Dark Knight"

Good column here by a Catholic priest, Father De Souza, on the philosophical underpinnings of the struggle between Batman and the Joker in "Dark Knight". I liked that he quoted some of the dialog from the movie which I liked at the time, but couldn't have quoted verbatim. The line from Harvey Dent/Two Face was really powerful in the movie:

"You thought we could be decent men in an indecent world," summarizes the hero-cum-villain Two-Face. "But you were wrong; the world is cruel, and the only morality in a cruel world is chance."

As Father De Souza points out:

"If reality has no order to it, if there is only chaos and chance producing what we experience, then against what criterion of reality will good and evil be measured? Everything retreats into relativism and meaninglessness."

Something to thing about!