its taken land rover engineers 50 odd years to design the suspension used on todays land rovers.
if they are supposed to lean , they are supposed to lean.
try this,
watch the front of your bonnet as you pull sharply away from the lights , you can see the engines torque pushing down on one side of it.now imagine pulling a two tonne trailer? the stiffer springs are to balance the vehicle. if you look you will find the prop shafts , tranny box etc all to one side of the vehicles centre , its all balanced to give the optimum road handling capability's.