Where, The Better Mannners? (employment, living, manufacturing)

[BoCosmo]

I was told by an expatriate girl from Newcastle-Upon-Tyne in England that those raised in a locality with a tradition of generational employment in manufacturing industry tend to have superior social skills: and that living is such places, even in economic hardship, would be pleasanter than staying in other parts. And on a recent trip to the U K, I, with an open mind, attempted to research this: and I came away with the impression that there's some truth in it

[BoCosmo]

In other words, niceties and superficialities aside, would family-members of factory-workers, etc have a superior appreciation of their neighbour than, say, the self-dependent?