[username223]

Really? Honest question. The 19th century Robber Barons were bankers and industrialists -- Morgans, Carnegies, Stanfords, and Rockefellers. Before that it was slave-owners and more bankers and industrialists -- Rothschilds and what-have-you. Back in the Middle Ages it was extortionist thugs, a.k.a. the nobility -- Louis the nth, Henry the kth, etc. I guess the clergy were always fairly well-to-do, but most people wouldn't consider them ad-men.

EDIT: I see where you may be coming from. Newspaper barons like William Randolph Hearst? Sort of, but his papers offered both "creative" and "editorial."