Nothing in this world is more powerful, or more dangerous, than the truth. That's why some people go to such lengths to avoid hearing it. It may also be why others strive so hard to keep their conversations empty. They wouldn't want to find themselves accidentally saying something meaningful that might bring about a change.
There was not a lot of dialogue. The titles were just to keep you up. It's the visual stimulation that hits the audience. That's the reason for film. Otherwise, we might as well turn the light out and call it radio.