So it is said that Adam Smith said that self interest leads to collective interest.

This is obviously not the case. We do not have the near equal society that he predicted.

My question is, Is there a way to engineer society such that self interest will lead to a collective interest?

So it is said that Adam Smith said that self interest leads to collective interest.

This is obviously not the case. We do not have a society that maximises the collective good*.

My question is, Is there a way to engineer society such that self interest will lead to a collective interest?

*It can be argued that the very poor are not as poor as they were a short time ago, but this is not what I am asking about.