I recall that in Brave New World, the perspective changes rapidly between characters, sometimes as little as a single line of text is given then the perspective changes to someone else entirely. Why was that done?
The goal is to get as much information to the reader about the society as possible. So we hear from a lot of people in many areas, all supplying a bit more info.
In films, this would be like the opening that shows many people in rapid succession, each doing their own thing, all illuminating the world you're seeing.
A montage in print, effectively.