If it comes to be believed that we are simply a propaganda organ of some kind, as a lot of people believe about some of our competitors, that would be a problem.
Through clever and constant application of propaganda, people can be made to see paradise as hell, and also the other way round, to consider the most wretched sort of life as paradise.
I don't think art is propaganda; it should be something that liberates the soul, provokes the imagination and encourages people to go further. It celebrates humanity instead of manipulating it.
The United States has it's own propaganda, but it's very effective because people don't realize that it's propaganda. And it's subtle, but it's actually a much stronger propaganda machine than the Nazis had but it's funded in a different way.