I think it's not only moral indignation. It's a feeling that fines are not working. Since fines are not working, maybe prison would. If you make the fine large

I think it's not only moral indignation. It's a feeling that fines are not working. Since fines are not working, maybe prison would. If you make the fine large enough to actually matter, it would probably affect people working at the company who had nothing to do with the illegal activity. So maybe you should figure out who said 'OK' to the stuff, and who implemented it, and then put them in prison. Maybe then other companies won't do similar things. I don't know if it would work, but the sentiment doesn't necessarily come from moral indignation or "retributivism".