I think the biggest thing here is seperating out those who *KNOW* what they want to do vs. those that don't when they enter college.
If my goal is to be a nurse, an engineer, a pharmacist, a history teacher, ect, then my degree of choice is pretty important. If I want to be one of those, I'm not going to chose a film degree or a liberal arts degree.
If I'm just going to college to go to college and don't really want to know what I want to be when I grow up, then it's less of importance. You'll find something, it just likely won't be in what you studied.