Russell and Watch Tower adherents were Restiutionists. They believed in a restored paradise earth. This was derived from the Literalist/Age to Come movement and is traceable to the first century. What Rutherford did was 'clarify' who the great multitude of Revelation were supposed to be. He did not introduce the thought of an earthly inheritance.
Note that the Watchtower wrote: "Christendom generally does not teach the Scriptural truth that one day obedient humans will live forever on earth."
This quietly acknowledges that some churches do teach that. Among these are the Abrahamic Faith bodies. The largest of these is The Church of God General Conference (Atlanta). Russell was connected to this group in his early days, some of them calling him "brother."