The balance of power is so unbelievably skewed that "the science" simply cannot be trusted. There is no study that Mansanto can't buy. There is no study than mom and pop can buy.
So, we look them in the eyes and we see scumbag villain vs simple folk. We see scumbag villain pumping out lakes of chemicals and crushing people and my what big teeth you have. And you've made how many billions on these chemicals? And how much is the poor little grandma asking for?
It's a no-brainer. Dig some millions out of your sofa cushions and pay the poor family.
It's not scientific. It's emotional. And lots of normal people get pretty emotional about the big bad wolf. Still, they didn't shoot the wolf. It's still alive and able to eat some other grandma. It just had to pay for a grandma it may not have eaten at all.