Catastrophically bad actors can sometimes be the accidental savior of a system.

If the system has become so hollow and rotted out, it creates a condition where a cynical bad actor can take over.

They kick off what is experienced like a forest fire by the rest of the system.

The forest fire clears out the rot.

It also shows people why bad actors like that are a bad idea.

The system can now be saved and rebuilt when the forest fire is put out.