Sincerest Form Of Flattery?

Webster's online give this definition for a thief, "One that steals especially stealthily or secretly; also: one who commits theft or larceny." I believe that one exists on campus. Earlier this semester I noticed the Music Department took a photo of mine and used it on an ad to promote their up-and-coming shows. An instructor took the photo from our Corsair online edition. He gave the photo to the Music Department to use. This, in my opinion, is a theft.
I wrote to the instructor to let him know that this was unprofessional and improper via email and he responded with, "As you believe it was improper I do not and will stand by this until I hear differently" The photo in question is a photo I took of him last semester, as he was a guest conductor with the Santa Monica College Symphony orchestra. We as Corsair photographers pay to take the class, which allows us to work on the newspaper. We have to buy our own camera equipment, which we use to shoot the photos. We spend a lot money to work on the newspaper and this teacher takes my photo for the benefit of the Music Department. This is not right. At the Corsair we as journalists deal with ethical standards to the highest degree. Here is an employee of SMC stealing a photo. What kind of example is he setting.
If the instructor wanted to use the photo all he had to do was ask. Then this whole problem would never exist.I ask the instructor this question. What if you wrote a music score and someone else took and made money off it. How would you feel then? This is essentially the same thing you have done with the photo I took of you with the Music Department.