To identify a motive by the WTS/JWS leaders (GB), it really was about creating set doctrines which could be utilized to not only attract people to the literature the organization published but to coerce and manipulate people to publicly distribute those pieces of literature themselves. This was strategically designed as preaching an accurate bible based gospel of Jesus and his new kingdom order.
Eventually overtime these doctrines ran their course and are easily pointed out as false unscriptural doctrines.
The Watchtower Corporation was tricky, deceitful, lying, corrupt, apostate and sinful in its endeavour of preaching a tainted and commercialized Gospel.
Talk about bad associations spoil useful habits