Why not admit mistakes? Let the WTS answer for themselves the reasons for not admitting mistakes. I think they all apply to the WTS.
*** w78 8/1 3 Can You Admit When You Are Wrong? ***
"THE foolish and the dead alone never change their opinion." At least, so said writer J. R. Lowell.
Then, despite all the evidence of Jesus resurrection, they wanted to get rid of the apostles, who were witnesses to this mighty work of God.
Yes, rather than admit that they were wrong, the Jews wanted to remove all trace of the evidence.
Have you ever known a supervisor at work who makes a mistake and, when it is exposed, refuses to admit it or tries to blame someone else?
This is due to pride, a feeling that in his position he should not be caught in a mistake.
*** g73 2/8 3 The Wisdom of Admitting a Mistake ***
Admitting a mistake reflects on things we may take pride in, such as our knowledge, our skill or our carefulness. We want to have a good appearance in the eyes of others. Seeking to "save face" is not limited to Orientals.
Without doubt a very telling reason why it is difficult at times to admit making a mistake is the blame, censure or punishment that may come because of having made a mistake, as when one causes a serious accident.
Because of the shame that goes with making a mistake the tendency is to pin the blame on others, a thing our very first parents, Adam and Eve, tried to do.
Frankly, what really is gained by refusing to accept blame for what we have done? True, we may not get disciplined at the time, but "whatever a man is sowing, this he will also reap." (Gal. 6:7)