Colour me distinctly unsurprised. I have written about this earlier too; it all makes sense once you realize that the admissions process in Ivy League colleges in the U.S. is biased towards grooming the scions of the wealthy and connected to take up their station in life. Our own admissions systems, i.e. JEE and CAT are slowly getting there -- give them another decade or so, and we'll be right up there with the 'best' of them.