what do you guys think are some underrated/underutilized aesthetics in scifi?

Star That Carved Its Name In Darkness
what do you guys think are some underrated/underutilized aesthetics in scifi?
Showcasing fictional pop culture beyond fashion or slang. Think theatre, dance, or live music.
I guess for many shows/movies there just isn't time to showcase that kind of thing. But Fifth Element did it masterfully with the aria scene.