An interesting post Terry.
I found the scan of Enemies by J.F. Rutherford on archive.org. In the chapter that you quote from, Rutherford's condemnation of religion primarily focuses on the Catholic church.
He states "The Catholic Church organization in America holds title to property valued at more than two billion dollars." Their wealth is spread across the world in the amount of "many billions." Rutherford raises the question of where does that tremendous wealth come from...."from people who put themselves under the dominating control of that organization."
This book was written during the darkest days of the 1930's depression. Perhaps the Watchtower leadership was coveting it's religious neighbors wealth?
ginger