I think you're probably seeing a bias introduced by your sample being composed of people who have the reach to be identified by us as "publicly worried" figures

I think you're probably seeing a bias introduced by your sample being composed of people who have the reach to be identified by us as "publicly worried" figures. Public figures are probably more likely to have a larger footprint. Similarly, public figures are probably more likely to make cynical public-image decisions. I don't think the accusation applies broadly to normal people. And even further: Everyday people who are not public about their worry won't contribute as much to your observations. Anecdotally, I know many nobodies who are very worried about climate change and who make lifestyle decisions using that concern, and who I am confident are not shallow public-image cultivators. How successful or impactful they are in their efforts, I can not say.