Let's just put this in plain English. Manual laborers are rewarded more in a Marxian society because their loyalty is more easily bought. The thick-headed are a natural target for class warfare, since many of the simple-minded resent their smarter neighbors. Call it Marx's Revenge Of The Boneheads.
Michael
Here's one place where the left is losing it, IMHO - they can still work up class envy between poor and wealthy, (that stubborn adherence to economic measures I mentioned) but the class of the poor and the class of the proletariat aren't the same anymore. A wise fellow once said "the poor ye have with ye always," and if He was right it's a mighty shaky foundation for leftist politics. I think that's why the latter are shrinking in effectiveness, if Paglia is right on that account (and increasing in stridency).