Rutherford was no fool, he was self avowed opportunistic individual that saw the money and power built around the Watchtower Corporation, that's why he was so ardent into grabbing a hold of the WTS., once he did legally have it to himself, he reflected upon how to keep it financially fluent, that realization concluded into printing more literature and have it distributed by the already retained members of the IBSA.
The postulation that Jesus had returned and is looking to see who would worthy to be saved and enter into paradise was still used as a vehicle to further proliferate the literature the WTS. published all throughout the 20th century and to this day.