I think the thing to remember is that, no matter the tool, pencil or computer, it is you that vield it. Its not like people say, yeah that colored drawing you made looks cool, but you had an easier job cause you used markers, try using paint, thats what a real artist uses. ... we accept that new tools are helping us do things easier and faster. Like a drawing compass making circles for you for instance - one would never look down at you for using that.
So we use the tools at hand, be it a tablet, a mouse or a pencil. The computer aids us with some shading and texturing and more important: layers and undo ... so many times when I've been painting (acryllic on canvas) I've wished for an undo button *lol*

so to sum up: no - the computer doesn't do it for you - it aids you and that goes not only for photoshop but in all walks of life... Word don't write your novells, Excell doesn't do your accounting etc etc