Come on. The "if I didn't do it someone else would have" justification for bad behavior is covered in Ethics 101. He acted like an asshole and got called out for it. Not just an asshole, a pretentious asshole (the worst kind) who put a picture of a starving African child in his post. This wasn't even some obscure vulnerability, and certainly not in some "mission critical" operation, so even that reason doesn't fly.