Land speculation produces no goods or services.
Society is not better off with feudal aristocracies. For any government to allow land's rental value to go into the hands of a few people or institutions is to allow slavery. All people and all forms of business must use land. The public collection of land's rental value, by removing financial rewards for land speculation, would reduce the overall cost of land to its lowest possible level, eliminating poverty. With access to land, no person can be made a slave or be compelled to work for less than one's full worth.