Environmental harm should be one place where the corporate veil should be pierced and people should be held personally liable for their actions and decisions.

If someone dumped tons of deadly chemicals into a river for no reason, and those actions resulted in the long-term deaths of thousands, they'd go to jail. But if that person does the same thing for profit, as an executive of a massive conglomerate, nothing happens to them.

A big issue with pollution cases is it's hard to definitively prove that some pollution event cause a particular person's disease so there's always long drawn out suits where the corporations hold a majority of the power because they have so much more money.

As for piercing the veil it's rarely super clear that someone high up actually forced the pollution to happen. All the internal policies and emails usually say the right thing but the incentives, pressures and money all put pressure to people down the ladder to skirt the rules the inevitably leads to disaster.