Others weren't breaking the law. That's actually pretty important: our legal system doesn't allow us to seek justice for criminal behavior which wasn't criminal at the time, and mostly that's a good thing.
That's what Superfund is all about, really. Companies have been fined and sued into bankruptcy for breaking regulations that actually existed, though by no means all of the ones that deserved it.
Look at the notorious Love Canal. The company got permission to dump toxic waste into a pit. And after Occidental bought the company, they were required to pay for the clean up.
It's obviously also a consequence of the short term focus of having fixed term limits.
I don't know how to fix these things, but it's irritating that nobody even tries to fix it.
And the shit that goes down in Canada is incredible. Trudeau. Young liberal, right? Ran on an anti-pipeline platform, but when he took office, he bought the pipeline for $7B and fully indents to build it.