Quite common as the Steering rack is right in the middle of the car so the steering connecting rods have to be long and when turning, they are subject to some movement upwards or downwards when they move in or out. Where in the middle the steering rack is placed affects this movement(as in How High,low,forward or rearward from the Centerline of the front wheels).
*Lower is better as when turning it angles the car towards the corner, Minimising roll, but Mercedes figured out a extreme solution to fix their problem with that moving ball joint.