Every great author has a philosophy

Orson Scott Card definetly ranks alongside the Sci-Fi greats I have read such as Isaac Asimov and Frank Herbert. So it was with some sadness that I put down the final book in his Ender's series. The 4 book series starting with Ender's game (which I had already read in college but read again) was devoured in little over 2 weeks, and I came away with some of his philosophies firmly entrenched in my psyche.
Im sure most avid readers would be able to name at least one author who has made an indellible mark on their psyche. Two authors come into my mind for me. Frank Herbert with his Dune series, and Orson Scott Card's Ender series.
What made me seperate them from the rest is that they couple great storytelling with engaging (at least to me) philosophies.
Frank Herbert's Dune is filled with poetic tragedy from beginning to end. His books are more about sociology and psychology than science fiction. And his main philosophy revolves around the belief that power corrupts, that it is no such thing as a benign superpower (be it a person(s), group(s) or nation(s)), and that all humans are not created equal. All very cliched views I know but his ideas are framed in a refreshing and very thought provoking way.
Orson Scott Card's views mainly (repeatedly) revolve around relationships and moral decisions. His outlook is taken with a pinch of salt because there is a heavy Mormon slant to it. Not that I am against Mormonism, I am just wary of anything that is religously influenced.
Does anybody have a good author, book or series to recommend? Great storytelling and great philosophy is a must. Preferebly if coupled together in one package.