While the planet itself is of little value, the moons of Saturn hold a vast array of riches, and all togethor have a population of over 20 million. (although there is a small manned research station in saturn's upper layers to study the planet.)
Almost every one of Saturn's moons has some sort of human population, and many of the moons contain vauluable ores.
Saturn's Rings Edit
Saturn's rings, being mainly composed of water ice, have multiple space stations to extract the water ice and ship it to colony worlds around the galaxy, although the water output of many of Saturn's moons is much greater, due to the fact that they have a surface to land on.