He mixed some insight in with the laughs, for sure.
I was fortunate to see him perform back in the 1990s. He started his show with a several-minute tirade insulting pretty much any person or group you could imagine. By the time he paused to take a drink of water, maybe a third of the audience had walked out.
His comment: "Now that I got rid of those c********** who can't take a joke, let's have some laughs!"