Nope. I just looked at the wear arc on a pin from a worn chain. (Okay, I'm weird. I keep my pins and pieces bagged together for/with each chain.) It is approximately 180°. Wear difference would thus be 16/180, or 9% max.
I don't understand what that computation means, but if you have noticeable wear 180 degrees around a pin, you have either already replaced and inverted the chain, or you have a very badly worn chain. The fact that you can see some wear around the rivet doesn't tell you anything about the depth of the wear. You would expect the greatest wear to be somewhere in the middle of whatever the total range is.
And we haven't accounted for other wear mechanisms, such as high chain angles, vibration, etc...
None of that matters. It all still occurs in the same limited range.
em