You have to wonder how "good" a guy can remain after 30 years of endorsing the counterculture, only to see your audience keep lapping up the schlock the "regular" culture feeds them over and over.
The guy played to packed houses, to people who allegedly endorsed his ideas and ideals, yet nothing changed over the course of his career. The Man stayed in power, gained more power, and the people listening to Carlin tell them how much of a joke The Machine is kept fueling the machine. After a while, even the most staunch advocate of counterculture has to get cynical, you know?
How 'bout them Huskers!