Why does this article not compare the gross margins of various industries? It seems worthless (and disingenuous) to quote absolute figures in the billions. Fo

Why does this article not compare the gross margins of various industries? It seems worthless (and disingenuous) to quote absolute figures in the billions. For example, Exxon made 40.6 billion in profits in 2008: http://www.usnews.com/articles/business/economy/2008/02/01/exxons-profits-measuring-a-record-windfall.html http://www.usnews.com/articles/business/economy/2008/02/01/e... That's more than the entire ISP industry, but does it matter even a little bit?