The elder ended up telling me, that this was all just part of Jehovah's plan and it would make more sense, when it was completely revealed in time.
How many times have you heard that statement. Such a large portion of Watchtower doctrine is totally senseless that they have to use the "it will be revealed in due time" line constantly, yet a JW has the gall to say they have "the Truth"
Your comment is very relevant, and key to understanding that the doctrine of the F&D slave is wrong. Apart from the Governing Body, being anointed means nothing. Which makes mockery of the Watchtower explanation of what the F&D slave is.
Watchtower 1995 May 15 p.16 ?If all the anointed as a group, no matter where on earth they live, are members of the slave class, who are the ?domestics?? They are the same anointed ones but considered from a different viewpoint?as individuals. Yes, as individuals they would be of the ?slave? or they would be ?domestics,? depending on whether they were dispensing spiritual food or partaking of it. To illustrate: As recorded at 2 Peter 3:15, 16, the apostle Peter makes reference to Paul?s letters. When reading them, Peter would be as one of the domestics feeding on the spiritual food provided by Paul as a representative of the slave class.?
http://jwfacts.com/index_files/slave.htm has more info on why the F&D slave concept is wrong.