Because everyone in TV knows that TV isn't about the truth, honesty, information, or any of that hogwash. It's about selling ads. Cable TV "news" is outright corrosive to our civic institutions, and Jon Stewart would be the among the first to tell you that.

The public shaming of Cramer was never going to change anything, and it wasn't meant to. It's purpose was to show the audience a public shaming and hope they stick around to watch Comedy Central's ads.

Jon Stewart's Daily Show was the media naval gazing at how fucked up it was. A form of impotent penance for those working in media. More fun than going to church to atone; and it covered it's own costs by delivering chuckles to the rubes outside of media.

Because garbage programming pulls in millions of viewers a night, and networks have no problem hosting morons when it means they can sell ad impressions to anyone willing to buy them...

Haha. I think it mainly has to do with the cameras being pointed at him while CNBC broadcasts.