On the show cars, yes. I maintain those areas with detail spray between sealant and wax applications. I'm sure it would protect against corrosion issues, but in my case, it looks SO good!
I'm in a pretty nice 2014 Barcelona Red Camry SE rental this week. The obsessive compulsive in me wants to correctly clean and detail this car, as there are plenty of automatic car wash swirls and water spots in the areas the car wash can't get too. But I'm away from home and away from my Adam's arsenal.
Oh, and the tires are really brown!