So...photographers like Joe McNally and Bill Frakes that use Aperture, and Catherine Hall and Alan Hess that use Lighroom are amateurs and enthusiasts....huh....whodathunkit....
Sorry to burst your bubble, but quite a number of pro photographers use Aperture and/or Lightroom in combination with other tools (Photoshop CC, plug-ins) for image editing.
Apart from great DAM of aperture I don't see much benefit