If you persuade the masses or individuals, one of the most important people that made what we do possible was Edward Bernays. He wrote one of my favorite books, “Propaganda.”
Edward was the nephew of Sigmund Freud and was the first to bring many of the psychological theories he came up with for marketing and selling.
Here are a couple of videos on Bernays and what he pioneered. I highly recommend spending the 10 minutes for each video and picking up a copy of his book, it’s a quick and easy read.