There was a certain graffiti during the attempted 1968 revolution in France: "Structures do not walk on the streets!" Žižek summarizing Lacan (haven't read Seminar XVII unfortunately) submits that the opposite is true, and this is where one might appreciate his relative conservatism: that the street fights between the student revolutionaries and the police were in fact expressive of and overdetermined by the social order, which is in a constant and dynamic process of self-definition (comp...
