@mattruby I think there's evidence of people being moved by celebrities and vaccination/non-vaccination:

https://www.theguardian.com/society/2016/apr/24/elvis-presley-polio-vaccine-world-immunisation-week

https://www.nbcnews.com/health/health-care/when-it-comes-vaccines-celebrities-often-call-shots-n925156

https://gizmodo.com/read-roald-dahls-heart-rending-endorsement-of-measles-v-1682995322