Is it "tryanny of big government" that Orwell was really critiquing? He was European after all, and they tend to be rather big government as compared to Americans in my experience.
Also, my read of Orwell was that the real problem was Big Government that put it's own needs above those of the people? And that the Government uses control of the media and information to maintain it's control over the population. In fact it uses all means necessary to maintain control. That it's all relative. I.e. ideas such "hate" are no longer seen as right or wrong- rather where hate is helpful to the government it promotes hate, and where it hurts the government everything quashed. Killing people... no longer right or wrong, only helpful to the government or not. That's the hell Orwell was talking about by my understanding.