If more people watch and learn from it, more people may be able to identify media that may have questionable motives. Leni Riefenstahl may be a great filmmaker, but that does not automatically excuse her poor morals in making the film.
The most heartbreaking aspect of the film is the absolutely horrible treatment of the victims. Little was offered in the way of relief, and poor leadership let the city fall into chaos.
The film is incredibly upfront in detailing the misrepresentation of African Americans by white artists and doesn’t shy away from showing the negative impacts of these depictions.
The problem is that Nanook of the North was created before documentary ethics were established.
Without documentaries, tons of historical footage would be lost. We’d be unable to see the impact of wars, natural disasters, and human greed. We’d never be exposed to various cultures oceans away. Without documentaries, we would lose a large part of our reality.