Ram used a clip from a Martin Luther King Jr. sermon in an ad for a truck, played over a montage of stereotypically patriotic imagery. Here—reportedly another quote taken from the same recording of the same speech—are MLK's thoughts on advertising. Specifically, automobile advertising.
An important thing to understand is that the ad agency talent knew about this. They were not blithely or ignorantly farming inspirational quotes from a freshly-significant historical figure. They are educated people whose entire lives are spent plugged into the currents of popular and political culture. They knew this would upset people. Generating division and rage was the point of the ad. It is shit flung in America's face, denigrating everything in it for the sake of a day's unbought attention.
