Note: I'm not talking about researchers or people who go through to the doctoral level.

I work at a prestigious university with a notable business school and manage large teams of students. I hire students from all over and in all sorts of different programs. In my experience, business students talk a good talk and have a good interview but then never actually want to do the work. They aren't in it for the learning, the growing, the doing. They are in it for the networking and to stage themselves for future opportunities.

So: no shock whatsoever. I agree with your point.