It does matter to follow through with your values though. Humanity isn't supposed to be just minmaxing economical output, a common set of values that we strive for is much more inspiring than burning everything to the ground, and leaving a world of ashes for future generations to capture maximum economical output right now.

I don't think it's a hard mindset to understand, giving up because others aren't taking it as seriously is the cowardly way to go about it. It's much more meaningful to show it can be done, help to scale technologies to become cheaper and more accessible for poorer countries, and inspire others with examples that it can be done so action can spread.