The only part of my brain that agrees with you is the "Machiavellian" part. Yes, there's something to be said about letting people do what they wish to do. But on the other hand, if people start jumping off a cliff tomorrow, you bet that I'm going to do what I can to save them.
Buying up Hertz right now is extremely dangerous. Encouraging the behavior will cause lots of pain to the investors who almost certainly don't know what they're doing.
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These aren't hedge-funds or big banks who are "smarter" than me. These are retail investors. The "dumb money" of the market.
In the best case scenario, these "investors" (really... gamblers at this point...) are willing to play a Ponzi-like scheme of "selling to the greater fool". There's no other reason to be buying companies up through a bankruptcy.