One would be the rising greediness and not to mention demand for goods and another would be rebels were around during this time because of the Civil war starting soon.
A social contract often relates to the legitimacy of the authority someone has over the individual. The relation between legal and natural rights also is a topic of social contract.
Thomas Aquinas was an Italian scholar of philosophy and theology. He tried to bring together ancient philosophical ideas about reason and medieval theological beliefs about faith. Hope it help!