"when it indeed pops, as the one made the decisions would have pocketed a big fat bonus and walked away"

And this is exactly what happened here and criminal investigations are happening, but I kind of doubt, whether they will lead to much.

Much in the article is based on hearsay, so it will depend on whether there are more people willing to testify. But one main witness already suicided, despite telling others he won't do that. Either way, that is already a strong deterrent.