I call it the "paper straws vs private jets" problem.

It's often overlooked that large wealth gaps are incompatible with a sustainable society. High prices will save the Tuna from extinction (economists were right!), except if there's a market for $10,000/plate sushi.[0] People are motivated to live efficiently, except if we see gross unfairness in the rest of society.

"Don't use trees faster than they grow" is the obvious part of sustainability. This is less obvious but no less important.

[0] shamelessly ripped from Donella Meadows keynote talk https://www.youtube.com/watch?v=hhSpzQhvFS8