> Jealousy is an adaptation to dysfunctional resource hoarding in social groups.
I wouldn't agree with that at all. If jealousy, as an emotion, is an adaptive strategy, it's certainly for promoting success of the jealous individual, as any successful evolutionary trait is. That seems entirely functional to me. The most successful succeed the most making everyone else want to be successful.
> That doesn't invalidate the fact that wealth inequality by itself is also (oddly) bad for the environment.
I don't think that goes without saying at all. What drives wealth inequality, in modern economies a free societies, is success and innovation. The richest man in the world got his start by helping create a widely used and safe way for people to make financial transactions in the Internet. He then rolled that into popularizing electric cars along with creating what still is the only reliable charging network . He then rolled that into making home batteries accessible (and trying to innovate in the solar field with the solar shingles).
So many of the innovative ideas that have progressed us towards more environmentally friendly technologies have come from and aided wealth disparity.
> Cheers and salutations
To you too!