One trick to change a system to default-converging: change the liability for what were previously externalities.

Make it so the entities making decisions now own the liability of the long-range impact of those decisions.

Now, every player has an incentive to solve the problem, intrinsically.

Even without much coordination, the result still converges.

You could argue that all incentives problems ultimately boil down to significant externalities of an action not being owned by the decider.