WHY DO WE UPGRADE OUR SUSPENSION

ANTI SWAY BAR: Just about everyone knows what they do. Combined with the t bar rate, the resistance to twist have is called roll couple. The current bars are very beefy and should be matched with torsion bar rates and the width and type of tire.
I've always been one to go a little bit bigger on the sway bars but not so much on the T-bars and also not to stiff on the shocks. This usually makes the car still ride decently while getting better handling characteristics. I'm I doing something wrong? Never did like my everyday drivers riding like a 3/4 ton truck.....