I've said this before, and I'll say it again, Lucas doesn't understand most of his own work. It sort of harkens back to the old bit, often referenced bit about Socrates coming to the conclusion that artists are actually clueless about what their own work is saying, and he could only come to the conclusion that they were possessed by divine force when they made the art. Substitute divine will with something almost as esoteric: the zeitgeist, and you can appreciate Lucas from another perspective. Whatever Lucas wants to say about what he was trying to say, Star Wars always struck me as a deeply reactionary story, the constant appeals to traditionalism, the distrust of technology, etc.