When you come to the Promised Land, the earth should rest. A Shabbat to God. Sow your fields for six years. Prune your vineyard for six years. Gather the produce for six years. In the seventh year, give it a rest. A Shabbat to God.
I fear sometimes that in our efforts to create more just societies, we can become self-righteous, indulging in the idolatrous practice of worshipping our own ideals.