Saturn Chart Ruler is a good chart ruler that makes one responsible, and can also defend from Saturnian perils due to an innate sense of responsibility, cause and effect, and also it makes you motivated in general to go after your goals and succeed.
Saturn is not a monster. Indeed, Saturn is not an evil planet, if one works cleverly on the side of Saturn. Saturn is the King maker of the ancient world, and is a very important planet, related to the Sun in Kingship.