Things are more complex according to me, as usual... If you are taking a picture of a riot in Damascus, composition and content are (partially) less important than sharpness, focus, density, saturation etc.
But if you are taking a picture of the wall of El Capitan in Yosemite, or of a highly detailed coleopter on a beautiful and colorful flower a slight off focus, a unwanted grain, or a less than sharp pixel can spoil the best of the talents...
In the present technological era, no part of the kit can be overlooked. You can be Michael Schumacher, but without a good car, any good driver with the best car will win hands down... Obviously is also true the reverse: no best car will win without a good driver...