Maybe it depends on the industry? I've dabbled part-time, almost went full-time. Photographers were intrigued I used a Fuji, but they didn't care beyond that. Clients didn't care either as long as you delivered results.
And you're right, most high-end photos take amazing photos. There's some variance in their color science, but most can take near-identical photos. I think the main differentiator among the camera is haptics.