The “father of propaganda” is Edward Bernays. Again, from Wikipedia:
Bernays pioneered the public relations industry's use of psychology and other social sciences to design its public persuasion campaigns:
"If we understand the mechanism and motives of the group mind, is it not possible to control and regiment the masses according to our will without their knowing about it? The recent practice of propaganda has proved that it is possible, at least up to a certain point and within certain limits"
He later called this scientific technique of opinion-molding the engineering of consent.
Another statement by Edward:
"The conscious and intelligent manipulation of the organized habits and opinions of the masses is an important element in democratic society. Those who manipulate this unseen mechanism of society constitute an invisible government which is the true ruling power of our country."
"Vast numbers of human beings must cooperate in this manner if they are to live together as a smoothly functioning society. ...In almost every act of our daily lives, whether in the sphere of politics or business, in our social conduct or our ethical thinking, we are dominated by the relatively small number of persons..."