This video is mindblowing! It's better if you watch Leo Gura's "Intro to Systems Thinking" first (since this is like a systems thinking case study) and his any videos on ego.
This will blow the b.s. of your own individual ego and the collective ego (which is a system itself) like nationalities, instititions, corporations, communities... heck even you favorite sports team has an collective ego!
Source: Leo Gura, Actualize.org YouTube channel https://www.youtube.com/user/ActualizedOrg