Edward Bernays (1891-1995) is largely considered the founder of public relations (or engineering consent, as he called it) but is not known very well outside of the marketing and advertising fields. A nephew of Sigmund Freud, Bernays was the first to theorize that people could be made to want things they dont need by appealing to unconscious desires (to be free, to be successful etc.). Bernays, and propaganda theorist Walter Lippman, were members of the U.S. Governments Committee on Public Information (CPI), which successfully convinced formally isolationist Americans to support entrance into World War I. While propaganda was commonly thought of as a negative way of manipulating the masses that should be avoided, Bernays believed that it was necessary for the functioning of a society, as otherwise people would be overwhelmed with too many choices. In his words:
Modern propaganda is a consistent, enduring effort to create or shape events to influence the relations of the public to an enterprise, idea or group.
[Source: Bernays, Propaganda, 1928, p. 52; available here.]
After WWI, Bernays was hired by the American Tobacco Company to encourage women to start smoking. While men smoked cigarettes, it was not publicly acceptable for women to smoke. Bernays staged a dramatic public display of women smoking during the Easter Day Parade in New York City. He then told the press to expect that women suffragists would light up torches of freedom during the parade to show they were equal to men. Like the Youve come a long way, baby ads, this campaign commodified womens progress and desire to be considered equal to men
http://thesocietypages.org/socimages/2012/02/27/torches-of-freedom-women-and-smoking-propaganda/