This seems to be more of a British usage, in my observation. The asshole, while it has other characteristics, is most famous for emitting shit. Pricks and dicks, while they have many more lovely qualities, are also used to rape both women and men. But 'cunt' as a metaphor for the rich and powerful is not really logical--on that basis I attribute its use here to misogyny. The cunt's crime is to be attached to an oppressed and therefore despised group.
Its use here is particularly galling since women are kept from having much decision-making power over things partly _because we have cunts_ (and associated equipment) but then the ruling class is identified as 'cunts'? Please. I know the old blues singers used to attack the woman when it was the boss they were really attacking, but they had some reason to veil their true sentiments. This guy (the singer, not WK) has no such excuse.
Jenny Brown </HTML>