pelihu
There used to be a saying around law school (common enough that I heard a version on Law and Order) that went something like: The "A" students go on to be law professors, the "B" students go on to be DAs and judges, and the "C" students go on to make all the money.
I think the underlying premise is that finishing at the top of a class is a great indicator of one thing, that someone is able to do well in an academic environment. That's great if you want to teach the subject matter, but not necessarily useful if you want to apply it. The savvy and sense required to do well in business might be reflected in things other than grades, especially when students put in varying levels of effort in achieving the best grades.
I agree. There are some few odd ones which manage to excel on every level, but the norm seems to be what you stated.
As you may recall, HBS discloses grades as: top 10% (Dean's list?), middle 80% and bottom 10%. The people in the top 10% spend a lot of time on the cases, talking to faculty and so on, but they miss a lot of the other activities, which IMHO, are a very important part of the B-school experience.
L.