1984 has coercive elements lacking from Brave New World, but the lack of any political awareness or desire to change things among the proles was critical to the mechanisms of oppression. They were generally content with their lot, and some of the ways of ensuring that have parallels to Brave New World. Violence and hate were used more than sex and drugs but still very much as opiates of the masses: encourage and satisfy base urges to quell any desire to rebel. And sex was used to some extent: although sex was officially for procreation only, prostitution was quietly encouraged among the proles.

You might even imagine 1984's society evolving into Brave New World's as the mechanisms of oppression are gradually refined. Indeed, Aldous Huxley himself suggested as much in a letter to Orwell [1].

[1] https://gizmodo.com/read-aldous-huxleys-review-of-1984-he-se...