It serves the agenda of the Watchtower to create as many destroyed lives and families as possible. People refuse to believe that the amount of suffering they have endured as a Jehoavah's Witness was for nothing. It is a form of asceticism, which is VERY pagan in origin.
We see the same thing in Islam where peoples' suffering and martyrdom is used for religious and political purposes.
As far as Wartchtower is concerned, the more families that are destroyed with shunning and lives that are lost from the blood doctrine - the better for them. It becomes a sort of badge of honor to suffer for Watchtower. It means you are "stong in the truth", because you are willing to "suffer for righteouness sake"; and hence more likely to be spared or resurrected in paradise according the Watchtower thinking.
Few people realize that the word "witnesses" in Greek literally means "martyr".
μάρτυς mártys, mar'-toos; of uncertain affinity; a witness (literally (judicially) or figuratively (genitive case)); by analogy, a "martyr":—martyr, record, witness.
When people sign up to be a Jehovah's Witness, they are signing up to be a "Jehovah's Martyr". We all know that for all intents and purposes, Jehovah is the same as Watchtower in the minds of members.
So literally, we all willingly signed up at one time or another, to be Watchtower Martyrs - without actually knowing what we we agreeing to.
This is not just an abberant "Christian" religion we are dealing with here. It is something far more sinister.