The message could be about the situation of the european population during WWII, indeed the Nazis were searching an ideal (Blond, blue eyes, tall, nice, intelligent, strong… like perfect), and the Nazis were watching and controlling everything, so maybe it’s a “parody” of this period, all is controlled, watched. Big Brother is the leader of the city and he wants that everything has to be perfect, like an Utopia but it isn’t, it’s a nightmare like a dystopia.
But it can be about the communisme too, BB looks like Staline (black moustache)
So it’s a criticize about the totalitarian regimes.
G.O is a writer of his time, because 1984 is a warning on a possible drift towards totalitarianism (nazism, communism…)