Proof? This is worthless of a statement as
"[Lawyers] are far less productive than engineers -- all they do is read reddit all day and not create anything of value."
The more productive people are, the more wealth can be generated.
http://www.fas.org/sgp/crs/misc/R42530.pdf
http://www.myvisajobs.com/Reports/2012-H1B-Visa-Category.asp...