Ultimately, the most important part to take away from the rhetoric of Popstar: Never Stop Never Stopping is that some of the people that we relate to and prop up as "icons" in our mind should not be related to or held as highly as they do. From what we see in media and how this movie emphasizes how celebrities lives are not comparable to our own (especially in the music industry but can extend to film very easily) we as a society should hold them to same ideals as we do ourselves.
The bad behavior of influencers reflects on a populace that is influenced by them. They live in their own bubble's where they can react to situations like they do. As "normal" people we should be able to understand that and not try to emulate their personalities and actions. We should still take inspiration by them or enjoy their content while still placing societal ideals toward their own lives like we do our own.