From my point of view the video is basically saying collaboration is most important as a programmer. Unlike athletes, programmers have to work together to achieve something great. Anything that is really impressive/great will come from the contribution of many programmers (eg linux). The question is: what is the most effective way to collaborate? Is there something about the ego that makes us ineffective? It would be really interesting if they had elaborated more on what makes a "healthy ego". Personally, as one of the critics has said, "people have egos no matter how humble they appear to be." It is simply human nature. Perhaps sometime it is more important to not to dumb down our own egos (or other people's) but to be more empathetic and reasonable working together.