To your latter point, do you mean to avoid being called a hypocrite? That is a real fear out there, but I’m not sure about career suicide.

In music at least, I’ve seen artists with platforms starting to step up. Billie Eilish has been outspoken, I think even Rihanna. Coldplay stopped touring until they could figure out how to be more sustainable. There’s a growing movement in the UK, Music Declares Emergency/No Music on a Dead Planet. A good podcast on that is Sounds Like a Plan.