I know that you are a mere flea! I know that you need only be squashed to be done away with! I know that I have fought this same battle a thousand thousand times before...but, perhaps this time I can crush you like the insect you are!

I don't know why you decided to wear that costume, but it makes you a symbol. Just as Robin was a symbol. Or Superman, or Nightwing, or the policeman who wears his uniform. And this isn't just a symbol of the law, it's a symbol of justice. When one policeman is killed, others take his place because justice can't be stopped.