Earlier quoted context omitted.
This may be true for entry level jobs, but for senior level jobs the "stain on the resume" issue is very real. A friend was a recruiter for FB until a few months back and has repeatedly stated that over the last 18 months she had an increasingly large percentage of targeted senior candidates refuse to even take her calls.
The same taint would apply after working at Google or Apple or even Barclays banks or MIT. Who wants to go through a 3 interview process just to find out that great candidate simply won't sign until the offer is bumped at least 3x
They'd use the interview for practice and free food.
Having said that, I'm not sure you can really tell in the stats that FB needs to pay more for similar talent?
Not sure how MIT comes into it though, isn't that a university?