I never got a good answer on this question and have discussed this with other members in the borg:
We JW's share a lot in common with Jews. Just in this century, both groups have suffered extreme persecution, especially under the Nazis in Europe. Both groups have in one way or another, been victims of religious hatred and often discriminated against because of their beliefs. This has often resulted in each group being relatively isolated from others in whatever country they live in.
Yet why is it that Jews, in general, get along and can thrive in their own environments much better than we JW's ???
There often appears to be so much friction when JW's work for other JW's and anywhere that money is involved. I even have heard more than one elder comment that it is often better for a brother NOT to work for another JW.
Jews, outside of their synagogs, have their own support networks and businesses that readily do business with other Jews (and probably prefer doing business with other Jews) ... why are we as JW's (that call one another "brother") different from the Jews in this regard ???
***** Rub a Dub