LinkedIn doesn't have all majors

I think it is interesting that LinkedIn does not have majors like Finance or Business. These are some of the biggest majors that students are studying, and are very applicable in the real world. They also are not very obscure majors, so the question is why does LinkIn not list them as a possible major? This makes it hard for students like me to get a profile made that really shows everything that I have done. I think it would be wise for LinkIn to add these majors as it will appeal to millions more people.