I apologize for bringing up the issue of Glenn Beck once again. As I expected, the comments surrounding him garner different, more vitriolic attitudes than I think is typical here at Mere-O.
Below is a video I found helpful from Doug Wilson, perennial theological gadfly, waxing eloquent on how Beck's success indicts evangelicalism for its lack of social engagement. This video is three minutes worth your time.
http://vimeo.com/14756220