Dude your completely wrong and need to go reevaluate your knowledge.
The only time the the outside edge of the tire is going to get use is during turning with -3* of camber. The inside edge of the tire and prolly the sidewall will be the contact patch.
I do this for a living not based off my jdm tyte hella flush car that gets driven 5 miles a day.
Ill even do some homework for you
http://en.wikipedia.org/wiki/Camber_angle
And from that
In cars with double wishbone suspensions, camber angle may be fixed or adjustable, but in MacPherson strut suspensions, it is normally fixed. The elimination of an available camber adjustment may reduce maintenance requirements, but if the car is lowered by use of shortened springs, the camber angle will change.
Excessive camber angle can lead to increased tire wear and impaired handling. Significant suspension modifications may correspondingly require that the upper control arm or strut mounting points be altered to allow for some inward or outward movement, relative to longitudinal centerline of the vehicle, for camber adjustment. Aftermarket plates with slots for strut mounts instead of just holes are available for most of the commonly modified models of cars.
-3* is considered excessive.