You needn't call me that. "Madam" will do.
~ Lady Tremaine in Cinderella (2015).
Aristocrats are not powerful enough to be monarchs, but instead are much wealthier, influential and authoritative than your average person. These villains are members of nobilities; Lords, Ladies, Barons, Baronesses, Dukes, Duchesses, Counts, Countesses and so forth. They are frequent antagonists in fantasy settings but exist in others as well.