The company was shit, hired upper mangerment that were clue-less & had very basic saftey regs......i mean Homer simpson had better idea's.
Silkwood did try to help the staff but i can't help thinking ther is MUCH more to this than evil large company tried to force her out by infecting her with a massive dose of Radioactivty?

Gee, that would sure as hell get the attension of EVERYONE, would she do it her self?.................no..........but may be a 3rd party?

https://en.wikipedia.org/wiki/Dusty_Ellis