PRSV doesn’t immediately kill the plant. It kills it slowly over quite some time. It replicates in the growing point of the plant. This conveniently is the same location where aphids feed.
The aphids then transfer the virus to a new plant. Plant viruses have a wide range of host species and they move around with their vectors.
For more information, Here is an excellent write up on the virus.
https://www.apsnet.org/edcenter/disandpath/viral/pdlessons/Pages/PapayaRingspotvirus.aspx
They also need to remove the limited liability from companies for intentional illegal activities.
illegal business practices should be charged to the people involved instead of the company. The executives who made the decision to break the law lose personal assets.
Otherwise the shitheads just pass the company losses onto the employees: no raises, hiring freezes, layoffs, reduction in benefits, etc…