Complexity. I forget the historian / philosopher who said that a civilization grows so long as the complexity added to the system adds value. As soon as the complexity starts costing more than it’s worth, you start to see the civilization collapse.
And then you have the ants. Or a traffic experiment in Europe that found that if you got rid of stop signs, traffic flowed more efficiently. Also see the roundabout system, which orders itself. What would happen if there were fewer layers of complex rules and more opportunities to do what needs to be done?