As much as Jehovah's Witnesses leadership would like to separate the Watchtower corporation from the religion, they can't. They attempted to back in the mid-1990s be adopting the name "Christian Congregation of Jehovah's WItnesses" and ordered members to refrain from citing the Watchtower Bible & Tract Society as their ultimate authority (e.g. the phrase "The Society says..." was and is sometimes still used by members, but it is frowned upon now).
The Watchtower is a publishing company (i.e. a business) masquerading as a religious organization to obtain tax exempt status. The fact that they even today still refer to members as "publishers" is proof of this.
pub·lish·er
/ˈpəbliSHər/
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noun
a person or company that prepares and issues books, journals, music, or other works for sale.
"the publishers of Vogue"
I became a publisher in my youth in the 1980s. We still sold the magazines for $0.25 a piece. Books were like $1.50. We purchased the publications from Watchtower with cash and then re-sold them to the public. Monies collected from the public were then donated back to the Watchtower. So, the Watchtower was making $0.50 a magazine. All with free labor.Any corporation has reporting duties and has to due to as they are held accountable to one or more persons or groups (shareholders, the government, etc.). Knowing how many door-to-door salesmen there are that are active, how many hours a month they are working, and the amount of literature being sold is crucial to a publishing company.