If the situation was that the husband was obligated to beat his wife, forcing him to pay for a referee to control how hard he beat his wife would be a good thing.
Obviously it would be better if he just stopped beating his wife, but the guys in suits upstairs would be pretty upset about that... So let's limit the beatings in the meantime
At Amazon scales, you weigh in how much money you'll save by breaking laws and eventually getting a slap on the wrist fine versus all other alternatives. Unsurprisingly it's often much cheaper to be terrible to your employees and replace them endlessly, than it is to not be terrible. Especially once you make unionization nigh impossible.
It's definitely relevant to me. I would never work at Amazon because of these practices, even if they probably don't extend to developers (at least at the same scale).
Maybe it's not relevant for you but I'm sure it's relevant for many others too.
If Amazon can improve their working conditions, either willfully or through the enforcement of labor laws, whether or not they are anti-labor is kind of irrelevant.