If you really think that Ivy league is so great and US education system is superior to almost all European countries, then you maybe wrong. I agree with BigBadWolf that US education is simply overrated, just as UK education. The simply thing is that many Indian and Chinese students are just not strong enough to go the long way/hard way. The don't want to go into the trouble of learning another language (other than English); Hence, there is more demand for US education than for European education,ex UK. Also most Indians simply look at ranking to decide their college, without taking into account the course structure, the faculty, the environment, the learning experience that they might have at another college.
Just see the youth unemployment rates of these countries. US and UK are no different than many other European countries which are suffering extremely high youth unemployment rates. Exceptions : Germany,Switzerland,Austria, Netherlands. These countries have lowest youth unemployment rates, and for a change, none of these have the so called "IVY LEAGUE UNIVERSITIES"
http://www.economist.com/blogs/dailychart/2010/12/youth_unemployment
Besides, Even Harvard degree in MBA might not help you get anywhere in Germany, as the want PhDs to be their CEO, not some slick guy who thinks he knows everything. Just look at the CEOs of all German MNCs.
I read about a guy MBA-Stanford and BS-UCB on toytown. He was earning 300k in US. He wanted to work in Germany,because of better working conditions, but he was dreaming about salaries of 250k euros, until someone (german) told him that "A MBA is at best equivalent to a German diploma". We don't consider it much. You can at best expect 100k euros, and a week later, he got an offer of 70k! So much so for Ivy league. He was treated just like another job applicant, and he was told that for managerial or CEO positions they look for PhDs.