Yes, I know it’s propaganda. But the fact that’s it propaganda actually makes my point. Propaganda’s goal is to reach out to people in the most effective way possible to affect their thinking. In 1944, those who made The Negro Soldier looked at black culture and concluded that the best way to reach out to blacks was to present them, not as hip or cool, not as victims, not as rage-filled revolutionaries, but as people of intellectual and moral substance. Moreover, as I noted above, that approach worked for both blacks and whites who saw the movie.
Source: Whatever happened to the idea that dignity is a virtue?