I say it depends on each individual's lifestyle.Some college students' priorities lie within their social surroundings,while other students put academics first.At most college campuses,however,you will see a mixture of both.Most students tend to cram and work hard during mid-terms and finals,but they know how to have fun on weekends.
With this said,you shouldn't discount a student based on this alone.Social activities can range from going to crazy parties,hanging out with friends,or just attending many of the college social activities.I'm sure colleges even prefer that their students go out and meet people.