Just to throw together a brief alphabetical list of my favorite sci-fi films...
2001
A New Hope
Alien
Aliens
Blade Runner
Close Encounters of the Third Kind
Dune
The Empire Strikes Back
Forbidden Planet
Interstellar
Jurassic Park
Planet of the Apes
Starship Troopers
The Terminator
Terminator 2
The Thing
The Wrath of Khan
I'm sure they won a pile of technical awards, but best picture/director/actor/actress?
Two were nominated for best picture (A New Hope and Dune) and neither won.
Four directors were nominated for best director but none won.
Kubrick for 2001: A Space Odyssey
Lucas for A New Hope
Spielberg for Close Encounters of the Third Kind
Villeneuve for Dune
Kubrick lost to My Fair Lady, which nobody remembers or watches anymore. Lucas and Spielberg lost to Woody Allen and Annie Hall, which is remembered but hardly foundational like A New Hope. And Villeneuve lost to a film that so far has a box office of less then $500,000 according to Wikipedia.
No nominees for Best Actor. Only one for Best Supporting Actor (Alec Guinness in A New Hope). I can't find *any* for an actress. They didn't even nominate Amy Adams for Arrival.
None of these deserved any recognition?
Keir Dullea (lead) in 2001: A Space Odyssey?
Sigourney Weaver (lead) in Alien or Aliens?
Rutger Hauer (supporting) in Blade Runner?
Matthew McConeghay, Jessica Chastain, or Anne Hathaway in Interstellar?
Jeff Goldbum or Richard Attenborough (supporting) in Jurassic Park?
Charlton Heston (lead) or Maurice Evans (supporting) in Planet of the Apes?
Kurt Russell (lead) in The Thing?
Leonard Nimoy or Ricardo Montalbán (supporting) in The Wrath of Khan?
All those performances are far more remembered than 90% of those on the Wikipedia lists.