2. That form of government in which the chief power lies in the hands of those who are most distinguished by birth or fortune; a political supremacy of a privileged order.
3. The class to which such a ruling body belongs, a patrician order; the collective body of those who form a privileged class with regard to the government of their country; the nobles.
Aristocracy is popularly extended to include all of those, who by birth or fortune, occupy a position distinctly above the rest of the people and it is also used figuratively regarding those who are superior in other respects.
There are bad manners everywhere, but an aristocracy is bad manners organized.