Each student gains different insights from different courses, making it difficult to generalize.
One common benefit students obtain to to learn how to understand social norms and structures more objectively, and see that there are various different ways that societies have been and are organized. Thus it should make students more understanding of social diversity and cultures outside their own.
Sociology also shows how social factors affect individuals, and that problems arise from social systems and not necessarily individual failings. Thus is should help students understand that many social problems cannot be remedied merely by blaming the victims, but rather that it is necessary to think globally about social issues.