If there is one student attitude that most all faculty bemoan, it is instrumentalism. This is the view that you go to college to get a degree to get a job to make money to be happy. Similarly, you take this course to meet this requirement, and you do coursework and read the material to pass the course to graduate to get the degree. Everything is a means to an end. Nothing is an end in itself. There is no higher purpose.
When we tell students to study for the exam or, more to the point, to study so that they can do well on the exam, we powerfully reinforce that way of thinking. While faculty consistently complain about instrumentalism, our behavior and the entire system encourages and facilitates it.