Well thats interesting that Rutherford was acknowledging Jewish banking control yet still considered Babylon the Great with its "Kingdom over the Kings of the Earth" to be Rome and "false religion" rather than Jerusalem and the international bankers.
It wasnt just the JWs that held that now unpopular view, Jewish British Primeminister Benjamin Disraeli stated the same notion, British Primeminister David Lloyd George said in 1909 that the most powerfull man in Britain was Lord Rothschild, and he reported that at the Treaty of Versailles that 120 international bankers ruled over the proceedings with the absolute authority of monachs.
British Prime Minister Winston Churchill had very strong and anti-semetic views untill he was bailed out by one over his gambling debts, Henry Ford would give a copy of the Protocols of Zion with every car he sold, it was very prevalant back then, even after Jews had served in the American forces in WW2 and the Jewish suffering had been discovered, those soldiers still returned to rampant anti-semetism back home.
I seem to remember the British as well causing death by refusing entry to Jewish refugees on ships that they prevented docking in Palestine.
This isnt just a JW thing, it was pretty prevalant everywhere back then.