A narrowing vile-maxim is the inevitable consequence of a marketplace void of enforceable rules that defined and gave birth to the marketplace.
Laissez-faire (meaning letting-go) applied to manmade systems in violation of the freedom of freedom requiring paradoxical rules is like playing a game of soccer without a referee. With players doing as they please.
The outcome of unverified laissez-faire, void of the checks and balances required in any marketplace, turning into a system no longer resembling the intended purpose of its creation, with an increasingly narrowing vile-maxim ruling the roost, yielding the undesired downsides your question insinuates.