No, it's bad for everyone but the liars... err, lawyers involved. The plantiff(s) get a pittance--particularly in class action lawsuits. The defendant pays a pittance compared to their overall wealth and can't be found libel further, writing off the loss for what amounts to a zero sum end result. And nothing really gets resolved.
In most cases, the supposed environmental threat / issue was utter and complete bullshit to begin with. With hexavalent chromium it is rarely found, if ever, in amounts above a few parts per billion in drinking water.
That is, there's next to nothing of it in drinking water. For it to really be dangerous you need 100 to 1000 times what's being found. The same applies for arsenic. You'll die from something else or natural causes before hexavalent chromium will do you in.