Valve's move to Linux was inspiring. He referenced Marx, I'm now starting to wonder about their wisdom in general. Why can't they just make a great game platform and stay out of politics.
Don't let the names of leading thinkers in a field scare you off because of some bullshit brainwashing.
In this case, the reference to Marx was basically saying that corporations pay you a fixed rate for your time, but must extract a larger value than what they pay you. Reading this won't make you start hymning the Soviet national anthem.
Talking about economics without referring Marx at all seems disingenuous.
The article is a post from the Valve's economies blog.