I don`t know why Steve insists that Zuckerberg is worried about employee salaries. Is there any evidence of that? It seems more likely that he is a true believer in opening the door to “the best and the brightest” by skimming the elite of foreign populations.
There would be a very simple way for Zuckerberg to prove that his immigration lobbying is disinterested: just announce that Facebook will never again use any H-1B visas, either directly or through intermediaries.
For some reason, though, he hasn`t done this.