Ignore the negative comments. Just watch it.
I almost didn't watch it because of the rather low rating on IMDb and the comments on the forum. I'm so glad that I did because it was such a treat. I enjoyed it very much. The movie is atmospheric, The score is just lovely. The characters believable, fully developed and you actually do care for them. No shots wasted; it felt full and rounded. There are more elements of surrealism than "social-realism", so forget about intellectualizing it and just go with the ride.
One criterion for a good movie is how much it engages you emotionally. High-Rise does that because you feel for the characters, (despite all the absurdity). It scores high on that. High-Rise is not really about socio-economics or politics but the characters. It doesn't try to be clever. It IS clever. The level of writing/film-making is high.
It's classified as "drama" but it's more of a "drama-comedy".
Notice that more than 60% of voters have rated it as 6 or above but the IMDb rating is ONLY 5,8. So, don't get fooled by that, as I almost did. I'm glad I watched it. It's one of those movies that stays with you.
True Self is righteous. It's a conspiracy to portray Man as a savage that needs taming and policing