The 600k was the fine for non-compliance. You'd get that whether or not someone was killed. (some fines will get a bumper for injury, but not many have a bump for death for some reason)
Ret assured, there will be a multi-million dollar lawsuit filed by the family that will get settled out of court for an "undisclosed amount". (around 4 million is par) The fine was just the wakeup-call for the board to find a scapegoat to be the focus of the PR crucification and actual painful monetary loss for the impending lawsuit. The way things like this usually go, if the press doesn't dig up any real pattern of misconduct, there will probably just be someone issuing a public apology. If they do find a pattern, someone will get the axe.
Unfortunately, these places rarely get a fine unless someone is injured or killed, because nobody knows or cares about the noncomp until it hits the papers. Then the regs look bad if they don't step in and issue a fine like they ought to have done several times in the past to have, y'know, prevented this from happening in the first place.
But regardless of what happens, hopefully there will be changes made. From the looks of it, the tech that got killed was unaware that the wire that got him was energized, due to poor communication from his management, which appears to have been the result of poor communication from upper management and whoever was coordinating the work with the other group that was in charge of the deadly wire. So it's a bit early to be blaming the tech. Heck, he may have opened the box and tested it and found it wasn't connected yet and was safe to leave open, got to work, connecting it to something else, and half an hour later someone in another building lit the box up and the tech never knew what hit him. Things like that can happen when two different groups are working on connected systems and are unaware of each other and not keeping in communication as shared circuits are cut and energized.