1984 is an important book. It's a well written book, for the most part. But it isn't a terribly good book.
To a degree I feel that Orwell was a bit of a sadist and relished in lurid descriptions of Winston Smith's misery. To a degree, I feel Orwell fabricated a world that allowed him to explore his own personal paranoid fears of the world. But finally I find this book is an earnest warning against the type of totalitarianism that was Stalin's Russia as Orwell was writing it.
But here's the thing I kept coming around to in my reading. There is no state that can spend the amount of energy correcting the minds of minor offenders as the party does in this book. The bureaucracy needed to spy on every human on the planet would require all the people on the planet involved in only that effort. In the end, as all paranoid delusions are, it's the expression of an egotistical mind—one who believes their thoughts or sins against society matter enough that the entirety of the government must watch their every move, gather the evidence against them, and punish them.
Winston Smith is a nothing, a nowhere man— and not even terribly bright. There is no world-governing party that could survive if its energies were spent being concerned about him, and the billions like him, in any way.