Looking through Kindle bestsellers and print bestsellers, they seem to be very similar lists. I'm not sure why you'd expect them to be any different.

I agree that the assertion that ereaders are "elitist" is unfounded, but I also think that your assertion that the opposite is true is similarly unfounded. People will consume "popular" content (books, movies, TV, music) which is generally of "average" quality (where, by definition, most content falls).

So is the NY Times best seller list though. People will be people whether they read regular books or ebooks.