"Engineer" as title.
From "The Main Enemy" page 273, 274 (via Amazon's "look inside"): This is about Afghanistan's anti-Soviet muhadjeen.
"Gulbuddin wasn't an engineer, and I knew it. But resistance party leaders came in only two categories - clerics and engineers. If a commander or party head wasn't addressed by the clerical titles of "mullah" or "maulvi", then it had better be "engineer." So "Engineer Gulbuddin" it would be."
The book doesn't explain why, but perhaps a technical school of some sort that provided the only educated non-clerics in the country? I doubt that all the engineers identified by the study in question are "by title only", but maybe some are. But, as others have mentioned, I believe engineering remains a common field of study in the Islamic world. And good for them. More useful than most sociologists. Apart from the bombs, I mean.
The Penguin, 'cuz sociologists hate Linux but Engineers love it. (Sorry, that's the broadest stereotyping I could fit in. I'll try harder in future.)
Note re: Sociologist bashing: I've had a lot of exposure to them. (I have a little SocRad card around here somewhere...) Some do useful, valuable, interesting work. Too many, though, are complete wastes of space.