With obesity on the rise, diabetes is likewise rising, hand in amputated hand. So perhaps diabetes is natures great equaliser. As the pig people balloon in response to their greed and slothful existence, diabetes trims their extremities, thus reducing their weight.
I considered making reference to a seesaw at this point, but once again, deemed it a little insensitive. It's not always a smart idea to rile a pachyderm. A charging rhino is a destructive uncompromising force.