It's not that "truly good" causes need an "influential backer," it's that I don't want to have to get into an argument with someone in real life who decides I am some kind of scammer due to being affiliated with a movement that has been getting nothing but bad press thanks to one individual. Time is precious, just like I can't spend time researching every single tool that gets posted on HN for production viability, I can't spend time researching every relatively obscure social movement out there to adopt for myself. I ignored the crypto craze due to listening to the right people, just like I can ignore EA by listening to the same ones.