Have any noted "free market, deregulation" advocates changed their tune?

I think that’s my point. There is always the criminal mind that finds ways to exploit the theory for their personal gain. Therefore, you have to construct limitations and penalties to prevent that occurrence. You can’t just stick to your base theory. That’s where regulation comes in.

Civilized society is not “law of the jungle”. We need rules, regulation and law enforcement to protect those that don’t have the resources to protect themselves. If that is not what you want then have at it. There is always someone who is smarter, stronger, faster, better looking, well resourced and able to pound you into submission. Do you want a world of one Top Dog or a more egalitarian society that makes life a positive experience for a variety of people with an innumerable amount of talents?