The View From Falling Downs: Dicks v. cunts

Why is it that the epithet "dick" and its derivatives, ie dickface, dickhead, dickwad, etc., has less import than the epithet "cunt?"

When it comes down to the world-wide plot by a few California millionaires to destroy the global taxi business, the best that Calgary Mayor Naheed Nenshi can do is call them "dicks."

They're not dicks, they're cunts!

And while the dicks and cunts behind Uber are dicks and cunts, why do we find one of those epithets more wounding than the other?