Compared to the other topics covered, and to be covered, how is this essential to a successful startup?
Probably not essential but it could be quite useful anyhow. I watched the beginning and it was better than I thought. I worried it would be saying disregard abilities to make sure you have a mix of skin types etc but there was some useful things like avoiding the Uber type mess by treating different people well can lead to better companies. (See "Reflecting on one very, very strange year at Uber" for the Uber mess).