Retro-futurism and people being besserwissers.
Retro-futurism means that its sci-fi ideas and styles from other timeperiods done again. Like having a cyberpunk movie with 80´s hair styles, or in Fallout where it is cold war 1950s america aestetics.
When we talk about how the "message" is extra jarring in a movie that took place in the 1950s and people say it happened in 2077 then dont understand the point.
2077 was USA 1950s with ideas, values and aesteics. So the message makes no sense in many aspects.
Its pretty clear that the wasteland has kept much of the value system after the bomb to. Especially the vault dwellers.