As someone who DID go to a MAJOR 141 school and had my degree listed as "Commercial Aviation", I say major in whatever you want, whatever gets your 'plane flying' or Goosebumps going. Business is a good option if you like it, now me for instance I love Business. I myself participate in the stock market, and have a couple of ideas id love to implement someday real soon. And it can still be done that when I get on an RJ I can work with a few partners on that and split workload and share ideas while also being financially secured.
Another thing is though certain schools do have agreements through aviation schools for example: UND, ERAU, SIU, all have career centers/services whose targeted in getting you an aviation job, such as resume help or sending it through your school. Not only that I believe Piedmont highly considered Aviation degree holders for a bit, and a few other airlines. Its why im perusing an AA or possibly an second degree through ERAU online, im only about 4 classes away from an AA in aero science, since I completed all my Generals and the same ones match for my Finance BA. By doing this I have a prestigious name on my resume, it shows I still have interest and achievement in aviation, and I have access to ERAU's career services just like any other ERAU student.
Same as business, there are some companies recruiting business majors from my college as entry level management positions or even stock broker trainee's. So keep that in mind your major may help pave the way to a certain career path. For example why would US bank hire an analyst fresh our of college wh omajored in Theatre 101? Of course the student with the Business Adminstration major is more sought after and applicable.
In closing major in what you want. Most people on this site emphasize that because they have been through it and only intend to help. -best