I wish I lived in the world where "obviously beneficial to everyone" implied "it will be the future!" Plenty of things just get worse, just because. People are fucking awful. I look forward to the day when AGI takes over the world.
An interesting book on this topic: https://equilibriabook.com/ - Inadequate Equilibria by Eliezer Yudkowsky.
Societies (and smaller groups like companies too) could get stuck in a shitty "equilibria" - where even a non-expert can spot the inefficiencies, suggest obvious improvements, and yet not have the change occur. A great analysis of the unfortunate gridlock we find ourselves in sometimes.