As much credit as people give Star Wars, it's value may still be underestimated. Star Wars gives our society something we need desperately, a mythology. This is no simple feat. Only a true genius, someone predestined for their roll, could supply our jaded society with relevant and penetrating archetypical symbols. Unfortunately, given the subjective nature of post modern society, these symbols can't be conveyed universally, such as through a religion, but are only available to those willing to see them, and see them for what they are, at that. Meaning one can't watch Star Wars having already decided it's worthless and lacks any value and still receive these symbols. Star Wars has, of course, gotten much attention for it's strong connection with Myth and Archetype. The reason it may be underestimated, given that, is the subtlety, precision, and scope with which Lucas conveys this in his Magnum Opus, Episode 3.
Our society is at the beginning of a new age, a new way of thinking, acting, and feeling. We are out of balance, because we abandoned the intuitive levels of reality in favor of the rational/intellectual levels. Our modern culture is so desensitized to information, because we're inundated daily with it, it creates a serious dilemma for us, in terms of filtering what's important. Basically, our filter is clogged. We no longer have the traditional methods of accessing these archetypes, of assimilating myths. Gone are the effective initiation rituals, and gone are the elders responsible for connecting us with our ancestors. Simply put, we can no longer properly interpret life data.
Lucas being the visionary that he is, understood this problem back in 1977, and has been driving straight to the problems core since. Lucas hasn't just created story ideas and characters that are myth like, anyone could do that. He is creating a new kind of medium for myth. One thing our society strongly responds to are movies. Because we are so desensitized and so fortified against intrusion, movies, being our newest art form (unless you count video games), still allow access to the deeper experiential, intuitive levels. Lucas utilizes this fact to full effect. He doesn't explain or even imply that Palpatine is the Devil, he shows us. We don't grasp that fact through actions or words so much as by actually seeing a physical transformation take place. So, we're drawn into the story, letting it penetrate to our deeper levels, and then shown these vivid archetypal images, which allows the proper imprinting and activation to occur.