It might. But out here in the Southwest, we don't dress like Saudis even though their garb is better suited to the climate. For a lot less than $4000 New Englanders could wear mountaineering suits and that would probably retain heat and repel the elements better than a suit, but I doubt that one's coming around either.

Ultimately it's just a cultural difference, and searching for rationality behind it isn't going to bear fruit.