I don’t disagree with your point that there’s shared responsibility. But a big reason the welders aren’t the focus of the blame is that they were the first one

I don’t disagree with your point that there’s shared responsibility. But a big reason the welders aren’t the focus of the blame is that they were the first ones to die in the explosion. The consequences for PG&E were simply 4 millions here, which is a ridiculously small amount. Also, you don’t treat individuals and companies the same way.