Yea, it really doesn't matter if a particular line of research or Product existed previously. Typically, if someone is inspired into a field by a movie, it would be their "First Experience of that Level" (Wether that Level be the effects, or the way the storyline made the light click on, or the first time they had seen that particular Derivative story plot...)
So, all that really matters is if it had a profound effect of inspiration on you (Even if what it inspired you to do is already old hat). I'm sure there are truckloads of Engineers or other Sciency Professions who grew up in the 70s/80s/90s were inspired by Both Star Wars and
Star Trek equally.
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?