Living a full life encompasses more than the office and the lunchroom--even a very nice office and chef catered meals. I think this questioner has set up a false dichotomy. The writer presumes college life to be either about learning a trade (the law, science, etc) or wasting one's time on "the arts." I have spent a full life working in technology, in business and to a small degree, in the arts. But throughout my life the most interesting people, the most accomplished, the most humane, share an intellectual curiosity that spans the arts, the sciences and typically enjoys the latest advances in chip design, and can hold a decent conversation about The Grand Inquisitor.
The arts enables one to quesion our cultural assumptions and on reflection, enjoy different cultures and value systems. I also believe the study of the arts does wonders for creativity and innovative thinking--two areas that business values highly. Living a balanced life depends to a great extent on getting a balanced education, whether formally or informally.
I hope you decide that the arts can work for you.