Bob, you're not 100% correct on shocks. (far from it)

Shocks DO control body roll. They're not just about "absorbing shocks". The classic British nomenclature that refers to them as "dampers" is much more accurate. Dampers control the movement of the suspension. That movement includes body roll.

If you have completely worn out shocks, any body roll that the springs and swaybars will allow to happen will be completely uncondrolled, "undamped". When you dive into a turn, the body will not just "roll", it will "flop" right over onto the bump stops. Maximum body roll instantly with the lightest flick of the steering wheel.

With good shocks, that motion is controlled or "damped". When you turn in, body roll will still happen, but the shocks keep it from happening too quickly, and you have to be REALLY cornering hard to bottom out the suspension.

With good high-performance shocks, the damping is normally set for greater "low-speed" "compression" damping. What does that mean? "Low speed" refers to the speed of the shock shaft. Low shock shaft speeds are what happens with steering inputs. "Compression damping" is what happens when the suspension compresses. The net result here is that when you turn-in, the outside shock RESISTS compressing thereby reducing body roll.

Those same high performance shocks will often also have "digressive" "high-speed" "compression" damping. Again, high-speed refers to piston shaft speed. High piston speeds happen when you hit a bump. The firm damping that we want for crisp turn-in and more controlled body roll gives way to softer damping as the piston speed goes up. So, when you're driving around on your fancy Bilstein shocks that feel awesome in the turns, those same shocks are capable of absorbing the big bumps when you go over railroad tracks or speed bumps a little too quickly.