It's also a byproduct of them being kept so busy that they have very little time outside of the meetings, elders meetings, shepherding calls, and prepping for all of the former. Thus they mostly form relationships with the only people they spend a lot of time with, other elders. This leads to a clique and a better-than-the-rest attitude that just serves to distance them from others in the congregation. This is exponentially worse if the elder is also involved with RBC/LDC, assembly coordination, bethel projects, etc.
If they instead focused on the congregation and forming friendships with all in the congregation, then they would push far fewer out of the congregation. The WTS is too arrogant to realize that their current formula is not working. All the better for those of us who are already awake and waiting for our families to join us!