This is why. Just one example, a builder selling a wonderful, large, home in a prestigious Toronto neighborhood. So we’re talking millions. And in selling that, visual imaging is everything.
So this is what a non pro produces:
And this is what I made of that on a few seconds:
Colour, geometry, sharpness, all much better.
Details matter, and quality matters, and when you are a pro you take great care to get all the details right, both when shooting and afterward.
And I would have used a tilt-shift lens to get it straight without having to edit.