These corporations are high value and not making losses or at least do not have a history of losses.
We will install a feature that will allow conversion of a corporation into another type.
That will make the misuse option slightly less likely and could be prevented in new countries if the original corporation has high value and produces a product which is in short supply.
Instead of closing, you could make it into a different corporation without destroying 250.000 jobs.
Maybe, we will see more market corrections by players, that will make the cieling and floor price obsolete. we will wait and see.