You're missing the point. We don't perform on performance wheels when we're on the street (at least those of us who aren't retarded). We have them on as daily wheels because they look good without being flashy, and save weight which makes the car nicer to drive, and uses slightly less fuel. They don't draw anywhere near as much attention as a set of hektik chromies that are practically visible from space either.
And yes, you could have a 20.8 inch wheel with a low profile tyre if you wanted to look like a complete asshat, and have your car drive like a bucket of shit.
I love how you seem so concerned about illegal activities yet you only talk about your rims instead of the stuff that's illegal and the stuff that's possibly illegal on your car. Legit as.
Also, you really need to learn to English.