Well, here is my 2 cents as I wait for my program to compile !!

If you are riding hard enough that your feet are sweating so much that "wicking" comes into question, chances are that your T-shirt and your shorts are gonna sweat LOT more than your feet. As a result, sweat is gonna drip from those shorts. That dripping sweat is gonna go into your socks and shoes. The "in-pouring-sweat" from those shorts is going to be lot more than what your feet will sweat. Your shoes will mostly get soaking wet from sweat dripping from your shorts. So will the wicking socks be any better than cotton socks ? I don't really think so ...

EDIT -

I made this post because I have my shoes left out drying in sun since day before yesterday, and weren't dry today morning ! :-(