I feel like most economists already know that "greed" doesn't cause business cycles and that tax cuts and deregulation are generally good things....but with some arguing that more regulation is needed (strong ad-hoc reasoning) to prevent business cycles or implying that wealth disparity causes business cycles, i think this video is definitely in order. I think it's been long overdue for the such a vid to be posted on the misesmedia Youtube channel even if its ideas are discussed in multiple vids there because this really goes into the a meat-and-bones discussion and even includes graphical illustration(so i think it's a good intro vid for people who are trained in conventional economics, which emphasizes graphs).
http://www.youtube.com/watch?v=zhoFOyy7rbo