Ground rents are based on the value of land.
So government income will depend on making land more attractive.
Ground rents make people richer. Rich people like their world to be clean and healthy, with access to parks and wild life.
Ground rents force people to use only the land they need.
Ground rent makes natural resources more expensive, but work is untaxed, so is cheaper. So there will be a strong move toward renewable energy and recycling.
Faster economic growth brings more scientific advances.
Ground rent makes it easier to measure real costs. Anything that poisons land values for generations will not be tolerated.*
*(Because ground rent makes governments compete for workers.)
See also: animal cruelty