Why would oil companies dispose of their toxic byproducts when they can sell them to companies who will poison the public with them? Since it makes them money a

Why would oil companies dispose of their toxic byproducts when they can sell them to companies who will poison the public with them? Since it makes them money and there's zero risk of legal repercussions for it, the only thing that would stop them is having morals and the oil industry certainly isn't burdened with those.