The insightful replies that we tend to gravitate to those with similiar interests and backgrounds is an acknowledge fact; but - in the Watchtower organization we were not at one with the world and needed the friendship and comradeship of those of like faith and all that this religion imposed on our way of life.
What I observed that after Knorr became president and the influx of brand-new JW converts, that these new members did not have the same wartime experiences of hatred that the seasoned JW's their same age did. The new converts had their own social events. Our past created a reality which they did not share. The thought of binding together for strength and nourishment would make the unit stronger other than at meetings and assemblies, did not occur to them.