It's a bizarre metric anyway. Does Lee really believe that salary reflects talent? And that salaries are directly comparable worldwide in that regard? Even within an organization, salaries are often adjusted based on local cost of living, which does not correlate to ability in any way.
I mean, the "100 top universities" metric is clearly rubbish, but at least it might sound reasonable to the hard-of-thinking. The salary thing doesn't make any sense at all.