Why should they be anything else when there is no disincentive for being stupid?

I think Charles P. Pierce summed it up beautifully in his book Idiot America: How Stupidity Became a Virtue in the Land of the Free.

"The rise of Idiot America, though, is essentially a war on expertise. It's not so much antimodernism or the distrust of the intellectual elites that Richard Hofstadter teased out of the national DNA, although both of those things are part of it. The rise of Idiot America today reflects—for profit, mainly, but also, and more cynically, for political advantage and in the pursuit of power—the breakdown of the consensus that the pursuit of knowledge is a good. It also represents the ascendancy of the notion that the people we should trust the least are the people who know best what they're talking about. In the new media age, everybody is a historian, or a scientist, or a preacher, or a sage. And if everyone is an expert, then nobody is, and the worst thing you can be in a society where everybody is an expert is, well, an actual expert."