And when someone combines what you said above, with great skill in post production, the become even more skilled...
A skilled photographer doesn't have to be skilled at post process, that's why they have skilled computer people to do it. I know lots of great and very skilled photographers that aren't very good with photoshop, they learn only as much as they need to know. I don't agree with that approach, I prefer to know more than I need to know, even if I never use it. I'm sure most would agree. I'd rather be great with a camera than great with photoshop, but understand what you're saying, I'd rather be great at both. I'll just stick with being pretty good with photoshop.
While this is true of color slide photography, it is untrue of black and white photography, which I think digital is closer to in approach. Black and white photographers manipulate negatives all the time, the difference is that this manipulation is being done chemically, often in complete darkness, by adjusting development times according to exposure. The assertion that a good photographer 'gets everything right in camera' has merit, but I think that the approach under-utilizes that abilities of a camera to capture the widest possible range while minimizing signal to noise. Of course, such an approach (ETTR) would require that each capture be post processed.