The people who Jesus assigned to take the lead were inspired. Their inspired writings were to be used. When individuals went astray of that, Paul gave warnings about teaching their own things. The WT teaches their own uninspired teachings like Paul warned about.
If t you think the scriptures are talking about people other than the 1st century contemporaries, then tell me who was taking the lead, so as to be followed, after the death of the Apostles?
Does it apply to all religions and their leaders since then?
. Opps! seems we think in the same vain.. There is no one today that fits the bill.