In most countries, this would stop if we started holding C suite personally accountable for criminal actions of their company. If they make the big bucks breaking laws, they should be doing jail time.
They're about insulating the owner from debt. The LLC can go bankrupt without ruining the owner.
Even in the case of food shortage one must ask if speculation does not increase investment and production in the long run.
Can you unintentionally and unknowingly engage in a criminal act?
[1] https://en.wikipedia.org/wiki/Strict_liability_(criminal)