These folks would be classified as Born Again Christian (Bale.)Something to consider that while Batman is indeed fictional Gotham's "Messiah". Jesus is the Messiah and Redeemer we don't deserve but can't live without. And by life, I mean the fully-expressed and abundant life the Bible promises us.
He doesn't die for your sins. Instead, he grabs your sins, shouts at them in an intimidating, albeit comically grizzled voice, and proceeds to beat the crap out of them.
Batman: The Redeemer Gotham Deserves - G4tv.com