Not at all surprising that some of these social mandarins are inattentive to the finer details of dress. Â In the top echelons of north eastern society it's considered a bit nouveau to pay too much attention to one's dress. Â Being well dressed and being a socialite are quite different things. Â I imagine the same would hold true for the aristocracy of Great Britain--they'd probably be appropriately dressed but not to the point that it smacks of fastidiousness or over-involvement.
It's all the fault of the so called casual "progress." Casual clothing has permeated every element save for a few instances. Although in a general sense it depends on personal taste.