Even the proclaimed slightest difference in performance counts. A 1dxmk2, Nikon d5/d850, A9 would have an advantage for the 24hrs Le Mans environment especially in the low light.
In the end people look at the images. The average person looks at the composition and has no idea what camera you are shooting with. Some observations will be noted in the realism of the image or if it looks cartoon. It's a matter of how people post process but also hardware that is used.
Honestly, it's very difficult to follow your train of thought. I can't figure out whether you're trying to say that gear matters or that it doesn't. But I'm getting a sense that you're really more into gear than you're into photography.








