These Dye-jobs 'know' what the image is. Prostitutes look more sluttish, and their customers see it as proof. Bimbos need it for that bimbo look. Homosexuals look more funish, Dopers look more dopey, and Bitches look bitchier. Rednecks wives look more redneck in their giant yellow boufounts.
Transvestites always slap on a yellow wig to look like the dye-job movie star they're mimicking.
Then there's the goofy half yellow with black roots look. I don't know what that is. Perhaps it's just proof of membership. None of these people dye their hair to look more intelligent. None of them are trying to promote the idea of Scandinavians as better people or yellow hair as a sign of good character.