Rollover Risk for these 2 load scenarios.

And again, the OP was asking about the dynamic forces of cornering. And the 2 loads in my example would have the same risk.

In the real world, the likelihood of a 5K# cubed-out load is almost nil, so in that sense, you're right that the loads don't compare, as even a 15-20K high cube load (far more common in the real world) has a substantially higher risk of rollover compared to a dense load.