Star Trek is one of those things that lots of people like to poke at from time to time, and it's many over-the-top fans certainly don't diminish that.
But look at it from this perspective: There are few places in the West, certainly, wherein you can go and ask if anyone's heard of Captain Kirk and get a blank stare in response.
It's become that pervasive in modern culture. Add in devices like the iPad (named as such as a nod to Star Trek's
PADD), the development of flip-phones that called to mind images of the original Star Trek communicator, there's even a
list of modern real-life devices comparable (or roughly so) to Star Trek equivalents.
So, geeky or not, we do owe some of the cool stuff we use, at least indirectly, to the vision of Gene Roddenberry, Majel Barrett, and the creators and actors of a short-lived but well-loved TV series.