Ebbie said "I don't understand the mindset that lets so many of the same figures stay in their positions, the CEOs of the auto industry, the heads of the banks, the insurance companies, on and on."

Unless the companies are fully nationalized, who is going to fire them or replace them?

When Enron collapsed under the weight of their accounting fraud and extortion via controlling supplies of energy, the accountants that had developed the crooked book ENRON system of accounting got jobs at other firms touting their first hand experience in showing more profit than exists while hiding losses.
The companies that hired these Enron employees were happy to share their special talents. Companies like Lehman Brothers, Bear Sterns, Merril Lynch and many other banks that were dabbling in the investment market with money they did not have, welcomed the Enron expertise to hide their double dealing.

Prosecuting only a CFO or CEO was obviously not the correct way to stem the criminal activities of these new financial wizards.
They should even prosecute those who hired these ciminals.