When I was a ramper I was wary of the coworkers with the clean, nice looking uniforms. My experience was that those were the people who attempted to do as little as possible. This was typically a correct hypothesis.

On that note, I feel that a lack of quality of appearance is not a 'regional' or 'major' issue, but a reflection of society as a whole. 'Anything goes' with no standard of public appearance/conduct has become all too commonplace.