I think there are multiple morals.

• If you do something that you know you shouldn't, there will almost certainly be bad consequences.
• Not knowing what those consequences are will not prevent them from happening.
• If you act in the correct way and take competent instruction, you can save yourself even while everyone around you dies.
• In such circumstances, it may not actually be possible to save those around you without dooming yourself.
• When going out into a dangerous situation, find some way to check how safe it is first.
• Look after your animals. (This would be more relevant in a more agricultural society)