After a careful reading, the whole point of the "dragnet" parable, taken out of context was:
Remain loyal to the Organization...NOW. If you are not loyal despite the corruption that is becoming evident, "Jehovah" does not view you as desirable.
So the GB does not want you around if you are not a brainwashed BORG. Furthermore, being righteous in "God's" eyes requires loyalty to a corporation, NOW. The parable has nothing to do with a future judgment, but accepting the GB's interpretations.
Even though Jesus' own words tell us that that unwanted fish are thrown into the fire at "the conclusion of the system of things", the GB say," No. That's not what it means. It means people who don't buy our brand are not Xians, or wanted. Even so, don't say they won't get life, that's Jehoobers job."
They are more than likely creating more plausible deniability. They can practice their internal shunning, yet point to "evidence" that they do not judge or discriminate. Make no mistake, changing the meaning of Jesus' own words is HUGE if you put any stock in the Bible.