The reason I said you were punning is that rendering is different from a photographer's job and different from driving skills.
Rendering is not a realm of art, but a realm of labor.
Offline work produces different results with the same equipment and the same skills, but it is not a computer.
If you work with the same model and the same program, you will get the same result.
If you think of the car as the software and assets (the same for everyone), then you're left with the driver (renderer/Dev) at the controls....some are better than others.
I have to disagree with you.
Rendering is an art, placing and manipulating the models, clothes, hair, expressions etc. to look correct and good, as well as the setting, lighting and shade...something that is very much in common with a photographers skills.
As for your last sentence, this is what I and others are trying to explain to you...no you won't end up with the same result, as everybody is different and some are better than others.
Have a go and see. I think you'll find how difficult it really is!!