Of course, this prejudice for equality comes from reciprocity. If some have to work for a living and a pension, while others can have these benefits without the burden of work, that is a violation of reciprocity. The fourth key value judgment is environmentalism. Destruction of the environment is a bad consequence that discredits the economic system that generates it. Here again, it is not a simple matter of averaging.
Environmental quality is one of the material dimensions of the standard of living.
Thus, we can only say that environmental preservation is an independent value that a good society ought to advance. For people, now alive, this will secure some benefits, but it will also require some sacrifices. Reciprocity demands that the sacrifices by shared proportionately. In the modern world, environmentalism is an expression of that value of sacrifice for the future generation. Fifth, the Cooperative Commonwealth idea is liberal or libertarian.