Someone looked at how they thought it was important to spend their time and (ightly)decided they had their priorities mixed up.
Hopefully they will learn more from this brief internship than most.
The hardest thing for recent graduates to learn when seeking employment is that everything is the reverse of what it was in school. You are no longer the center of the universe—the corporation is. And what you have to do to get employed and stay employed is convince your interviewer that you want to and are able to help the corporation achieve its goals.
If you do that, and follow through, you don’t have to worry about anything else, except maybe getting someone to advise you on what to wear.