That’s a great point that I try to make to people - the same way a photograph never comes straight out of the camera, the rendering tools should always be viewed the same way.
You can get a great picture, but perfect product shots require lots of retouching, compositing, adjustment whether analog or digital. That lets you focus on getting the right lighting and shading on the right part of the model one at a time rather than having to try and render the whole thing perfectly in one shot.