In his "Hitch-hiker's Guide to the Galaxy" series, Douglas Adams 
defines three groups of people: Group A, Group B, and Group C.  Group 
A people are all the thinkers in a society.  Group C people are all 
the doers in a society.  Group B people are all the middlemen in a 
society who really don't contribute anything, people like used car 
salesmen, accountants, and oddly enough, hair-dressers.  I was just 
wondering if computer programmers were Group B people?