There were tactics to get the masses riled up that would not work on a city that healed itself. Marks could not be left to remind the citizens if those marks were gone by sunrise of the next day.
They could burn the entire city to the ground only to have it resurrect itself... but that... that in and of itself might be a good shock to the system. There would be physical healing, but the terror of it... Bane stored this idea away for later.
He was quiet for the rest of the drive, thinking. Watching the buildings as they slid by, keeping his eyes focused on the people walking, going about their routines. They seemed like ordinary people, but Bane knew that there was something extraordinary going on here.