Dressed like a teenager? Jeans and a T-shirt? Or when he wears collard shirts with jeans? I don't get it. How does the way he dresses impact his ability to lead Xbox in any way? Do you think only people in goddam suits are capable of running a huge corporation? How dense can you possibly be?
As for selling snake oil. He promotes a product he believes in. He is doing the exact same thing as anyone from Sony, Nintendo or Google for that matter. These guys are in business to make money. The sooner you realize that and stop believing they are your pals or some shit the easier it is to realize they are doing a job and are just lucky enough to do one they enjoy. There is little more to it than that.