This video is an effective way to visually communicate the wealth inequality in the US. I especially like the fact that it focuses so much on the difference between perception and reality. When I was teaching in China, I asked my class what percentage of Americans they thought was rich. The consensus was 80%. It would be interesting to ask students to do research like that described in the video. They could conduct surveys to find out what people thought the wealth distribution was, and compare the predictions with reality.
Another good direction to take with this would be to look at statistics on the global level. I’ve done an activity like this in the past — asking students to describe how they thought wealth was distributed throughout the world. They are always shocked by the actual numbers.