I think the wisdom is there more than you think (look around, every other person is concerned about environment especially younger ones). The problem is collective power to do anything about it. The few on top have disproportionate power and don’t care at all (because it wont affect them).

Even if we have the collective wisdom, that doesn't mean it will outweigh the incentives, especially if that decision-making power is unchecked.

Yup. The shitty thing about the prisoner's dilemma is that we nearly always lose it.