The tech industry for years has repeatedly and falsely argued that computer science and engineering are two occupations in which there is an acute labor shortage and demanded massive increases in foreign guest workers. While the drop in starting salaries in these occupations was not drastic it does indicate that there is no shortage of skilled workers in the U.S. If there were a lack of workers, wages would be rising precipitously, not falling. This is a basic rule of economics that even a genius like Mark Zuckerberg should be able to grasp.
Zuckerberg, who has pledged $50 million dollars to pass a bill increasing the number of skilled guest workers, along with amnesty and increases in legal immigration, did not see his earnings decrease in 2012.