I thought about that a lot as I was watching Voyager's sixth season episode, Muse. In this one, B'Elanna crashes the shuttle onto a planet inhabited by an Bronze Age culture and is found by a playwright--Kelis. Kelis believes B'Elanna to be an "Eternal" and uses her stories about Voyager to create plays (performed with a Greek-style chorus) for his patron. Through the course of his working relationship with B'Elanna, he realizes that his plays can serve to do more than entertain--they can inspire. He hopes that his stories of Voyager will inspire his patron to stay out of a deadly war.
Star Trek isn't Sophocles but I would argue that it serves the same purpose. Antigone was meant to entertain and inspire, to teach and make the audience think. And isn't that exactly what Star Trek has done for forty years and hopefully (like any good Greek tragedy) will continue to do for long time yet?