I think that here in the fan echo chamber we feel these things have a much greater impact out among the mundanes than they really do... I'd judge a question like this not on movie and book sales in a few years but in things like how much of it has made it into the common vernacular. Give the prevalence of terms like "warp drive" and "beam me up" [not to mention Shatner's Priceline-and-beyond career arc lol] I'd say you could argue that it was Star Wars
trying [and succeeding] to catch up to Star Trek
's influence. We'll see if terms like "Muggle" and "Quidditch" have that kind of legs over time.
Just like it always cheers me that every generation of college kids since the 70s still appreciates Dark Side of the Moon