The other irony of the violence is that the mainstream, NGO-associated protesters will disclaim any connection to the violence, 'nothing to do with us', blah, blah, blah, all the while realizing that without the violence the protests would be ignored by the press and the process of taking over that small sliver of power not yet held by big corporations would continue unabated. If nothing else, the riots serve as a reminder first, of the violence inherent in the state (even one as innocuous as Canada) in aid of money power, and second, of the fact there are still powers other than those wielded by the ruling class.