Not everyone defects, and your conclusion that "regulatory capture" is inevitable, and that us little people can do nothing, is toxic. Both are wrong.
I've spent years of my life trying to change things but it is defeatists like you that are part of the problem - spreading "we're fucked anyway" memes is corrosive because it induces the exact attitude and behaviour you say will happen.
Let me be clear, if the world dies we die with it and you die too - got it? So please get off your butt, stop trying to look so worldly-wise, and do something. I know, I know, it takes more effort than posting on HN. Tricky, that.