Answer:
Pursuing college education affects society in positive ways.
While it is true that the opportunity cost of college education at first is a bit high (you cannot work, or work less while you attend college), getting a college degree results, not only in higher and better skills, but also it is likely to result in more productive work that is paid better.
College graduates contribute to society by becoming more productive members than those who do not graduate college (on average), helping society move on and improve its economic growth.