I don't mind a bit of cynicism but this is absurd. Why the hell is "study" in scare quotes? It's a pretty standard thing for fresh graduates to better their chances for employment by getting higher degrees.
"As far as I know, the MS hires do not posses any special skills."
Maybe you should keep your speculations to things you do know.
I think you're being making the classic mistake of using your narrow experience range into making far larger proclamations based on speculations and innuendo. As an employer in silicon valley myself, I would definitely look upon a resume from a person with a Master's degree from US more closely than someone coming off of the infosys/wipro train. That is not to say that there's a clear yes or no either way but having an MS from a US university is at least one positive signal among other signals I'd look for in a resumé.