Honestly, there was nothing inherently "right-wing" about the government in V for Vendetta, other than that it was controlled by the Conservative Party (an actual British party, and the one that was in power when the graphic novel was written). That type of stuff could happen under a left-wing government, too. If the movie wanted to be left-wing it would have made some reference to economic inequality. As it stands, I would say that V is more of a libertarian or an anarchist (or even a conservative--he wants to go back to the way things were before) than a liberal or a left-winger.