As it is, you have had a long running attempt by shareholders to disciple corporate boards (read: gain more say in the operation of business) that has gone basically nowhere. On the other hand, you have corporate boards claiming short-sighted demands from shareholders irrevocably harming business.
And to be fair, both sides have merit, and both sides are corrupt, so exactly how to do you intend to pursue something as nebulous as accountability in such a scenario? It's wolves all the way down.
And in the unlikely scenario that criminal charges are leveled from this, you can almost be certain a degree of amnesty will be helped along from a few well placed campaign contributions. After all, (camera shot) you are hurting underlings that had nothing to do with this criminal activity.
The past few business scandals have made clear it is near impossible to address problems like these under current structures. At best, you can expect a slew of onerous compliance mandates, which even then, just end up fucking over the few honest players in this.
I mean I would delight if someone had a balanced approach to all this, but more and more it's just bad and worse threatening an even greater cesspool.