Dr. Gupta probably wouldn't be where he is, with a prominent spot on CNN, without being a good doctor. But his position on CNN has something to do with his likeability -- his appearance and ability to communicate well on camera. Are those qualities that we really value in a SG?
He could just be a brilliant doctor and a great communicator. One of my non-law student friends was asking me the other day about my peers in school. I told him that they're extremely intelligent, and he asked if they also have interesting personalities. Are they smart and the type of people you'd want at your party? My answer was, generally, yes. It's very intimidating, but my class (and the other classes at my school too, I'm sure) are both intelligent and well rounded. They're the type of people you're jealous of in high school and college: football team captain, speak 3 languages, double major in chemical engineering and political science and a model on the side. Seriously? Ugh.
Maybe Dr. Gupta is just one of those all-around talented people. And that can't be a bad thing in a SG.