I said yes because in the real world if I was in the business and were a full time photographer that didn't have the time to edit my own work. I would call you to edit. If you are looking to start a business as a photography editor I think you should you have the talent for it.
I would never start a business as a photo editor. Digital photography consists of both photographing and post-processing, so I wouldn't consider anyone just taking the photos a photographer. And just editing the photos lacks substance. If I ever decided to pursue a career in art, I'd probably be a full photographer.