Hierarchical dress comes to mind, Wordmatters.

“Dress for a Roman often, if not primarily, signified rank, status, office, or authority. . . . The dress worn by the participants in an official scene had legal connotations. . . . The hierarchic, symbolic use of dress as a uniform or costume is part of Rome's legacy to Western civilization.” (Larissa Bonfante. "Introduction.” The World of Roman Costume. Ed. Judith Lynn Sebesta and Larissa Bonfante. University of Wisconsin Press, 1994. Pp. 5-6)

http://www.vroma.org/~bmcmanus/clothing.html