Is Gotham this way because of us? You turned yourself into this unstoppable, unkillable thing. And then came Joker, and Scarecrow, and Bane, and now Memento. You built the Batcave and the Batmobile, you trained a dozen allies to fight with you...and the Court of Owls showed themselves.
Why do we do all of this? People still get hurt, and sometimes it's even our fault. You win. That's your superpower. You dominate. You dominate your enemies, your city, your allies...even the League. You're Batman. But we can't... heal anything... not even ourselves.