who really benefits the H1-B system?

I came across this provocative article the other week, which questions WHO benefits from the U.S. H1-B VISA program.

I find their statistics very interesting -- I did not know, for example, that Indian nationals were the highest applicants for H1-B VISAs. And another surprising little note: these workers usually bring their gained "technology" home to India, therefore benefiting India, and not necessarily the U.S.! The stereotypical realist would disregard this ideal cross-country intellectual exchange and argue that those workers would most likely enjoy the fruit America has to offer, marry the first citizen they lay eyes on to change their H1-B status, and remain in America, unconsciously adding to the immigration problem. Plus, much could be said about the loss of American jobs, and it would be a bigger deal because I am assuming that the workers from India possess high-level skills, and only want to add to that. But my comment on the job loss is: let's compete! A little competition never hurt the American spirit, right?

I don't perceive a threat here, just a healthy exchange of ideas (ahh, globalization)... Let's not be too quick to assume that with this exchange we are "losing" and create an opportunity for a threat.