Let us begin by setting up some fundamental axioms.
Let's assume there is a genuine distinction between reality and perception. If so, the Watchtower corporation operates in the real world by recruiting real people to do X. Those people are willing to do X because they've been convinced that X-work is ordained by an entity who calls Himself Jehovah. From this premise, we can extract some corollaries.
1. Watchtower Corporation relies on the X-work of its members whom they solely guide while self-referencing as a conduit for the invisible entity Jehovah.
2. Whether or not there exists this Jehovah, the members are real and the corporation whom they obey is real.
3. Regardless of the Jehovah-connection, members (Jehovah's Witnesses) perform X-work directly as agents of the Governing Body of the Corporation.
4. If the Corporation (Watchtower) is directing its members to do X-work under false pretenses and that work is harmful to others, Jehovah's Witnesses are morally culpable for their complicity, though less wittingly so than the GB wielding authority under false pretenses.
5. Nazis who were tried for war crimes at Nuremberg offered as a defense of their atrocities that they were under compulsion of Authority.
This defense was not permitted because each member of the Nazi party made the decision to follow those orders without resistance. By not using their rational mind and conscience to resist, they were found guilty and hanged.
Nazi rank and file believed in the Thousand Year Rule. Jehovah's Witnesses believe in something similar. Nazis murdered six million. The Watchtower enslaves seven million, draining them of self-empowerment, education, charitable acts, societal solidarity, and circumstantially twisting their natural affection for their own flesh and blood kin into a dispassionate indifference sometimes causing death.
Using the above as my premise, I would offer you the following opinion.
Jehovah's Witnesses may not originate the harm they accept as the highest calling, but the harm is done anyway.
The Watchtower is run by either delusional despots or psychopathic control freaks who will stop at nothing to spread the contagion of a movement dedicated its own enslavement as well as that of the world in total.
The threat of death (ultimately) and marking and shunning in the immediate, are weaponized religious beliefs used as coercion and undue influence.
You may distinguish the hit-man from the mob boss who orders the hit, but the distinction is illusory when the body hits the floor.