Many in the worldwide congregation of God’s people who have relinquished certain responsibilities are able to take advantage of new or expanded opportunities in Jehovah’s work.
From heaven, the King has made sure that his followers have received training on how to preach outside the congregation and how to fulfill special responsibilities within it.
They don’t want to disappoint Jehovah, or they may reason that if they are not dedicated to him, then Jehovah won’t hold them responsible for what they do.