Well, having gone to a top-15 bschool, I'd expect that if it were really so prevalent, that it would have come up, at least once. Especially from the prof whose class was interrupted by reporters for the local news companies. (This was 2009...)
I've used logarithmic graphs heavily in server and system analysis. Sometimes it's incredibly useful, and sometimes it's completely worthless. It's not like one is more useful than the other, each show the data differently, and each view has its uses.
Ah, so it's a badly-worded view. It could be called a "gain/loss graph".
That perspective would be much more useful in business. It's so useful that car dealerships have been fighting the same idea - the change from MPG to Gal/100mi.
I've used logarithmic graphs heavily in server and system analysis. Sometimes it's incredibly useful, and sometimes it's completely worthless. It's not like one is more useful than the other, each show the data differently, and each view has its uses.