Aristocratic. You live a life of plenty and comfort. You move in circles populated by the most powerful people in the community. You have excellent lodgings, perhaps a townhouse in the nicest part of town or rooms in the finest inn.
Social. A social enemy might be a personal rival, an idealogy, or a cultural trait. Its an enemy tied to interactions with others, they may have trouble fitting in, be a social outcast, not identify with their culture, or be wanted but their own kind.