Philosophers began to make people think for themselves. Also, they gave more books to the society, along with new times of governments and accurate history.
I think because they believed in them so much, they just trusted in whatever they said. For example if a Greek Philosopher were to say they thing a rule should be applied, the people would listen because they were the smartest people they knew!
According to Daniel Webster, the individual states had the right to nullify the law. He preached this idea on the Senate floor, stating that states should have the right to be able to practice nullification.