I majored in finance and was accepted by several schools. However, I worked in the industry for 3 years before having a change of heart and returning to school for pre-reqs. Most people I met at interviews with business degrees all had similar stories of working first before going back to school. Like
LizzyM said in your other post, schools don't care what your degree is in, but you have to have a solid reason for why you chose that degree. Having it as a "back up plan" seems like a weak reason to me. I feel like most or atleast a good amount of people decide to pursue med school because 1) they want to help people and 2) they like science. Accounting doesn't really fulfill either. (Yes it "helps" people, but that's a different thread). If you don't want to major in a hard science, you could do psychology, social work, public health, etc. I know having a Bachelors in business is more practical...but you ultimately want to be a doctor, right? I just don't know if you could be convincing enough to some interviewers.