You have an economical theory following in the footsteps of classical economists at the beginning of industrial revolution like Adam Smith and David Ricardo. It becomes incredibly popular with massive amount of followers. You were not an intellectual back then unless you knew about this school.
Somehow it offered a way out of the societal mess, but costing great fortunes to the economical parazites - monopolies (neo-aristocracy).
Some people in the school argue it was strategically removed from the society by funding a competing economical theory which removed land from the 3 factors of production and kept only 2 - labor and capital. Thus divert the attention from the real parazite (monopolist, rentier and landlord - someone who monopolizes land) to the conflict between employer and employee as depicted in the Marxist view on societal problems - which actually never existed.
So the new aristocracy (Rockefellers, Carneggies and others) decided to fund and found universities with the main purpose of destroying Georgism and promoting red herring economical theories instead - such as Marxism and neoclassical economics, both of which remove the parasitic monopolist and landlord out of the picture.
By not fighting with their enemy directly and thus making the georgist theory indirectly more popular it was a smart move for them to silence it down by promoting other theories instead, which is exactly what happened - from the most popular theory of economics to nonexistent to this day. No mention of it in economics curricula around the world - which suggests economics as taught in universities today is a fraudulent wannabe science or form of propaganda or both.
http://dollarsandsense.org/blog/2017/04/the-dissing-of-henry...
Mason Gaffney (famous Georgist) wrote a lengthy piece on this topic - Neoclassical Economics As a Stratagem against Henry George
http://masongaffney.org/publications/K1Neo-classical_Stratag...