Damon Centola of the Annenberg School for Communication said high-profile celebrities are better at marketing products and raising awareness than convincing their followers to embrace more complex ideas. “The way we’re using social influence is a little outdated,” he said. “Giving some groups a vehicle for talking about it and supporting each other in the communities is key.”
https://www.washingtonpost.com/arts-entertainment/2021/08/08/jennifer-aniston-vaccines/ The Washington Post