Maslow argued that the failure to have needs met at various stages of the hierarchy could lead to illness, particularly psychiatric illness or mental health issues. Individuals whose physiological needs are not met may die or become extremely ill. When safety needs are not met, posttraumatic stress may occur.
The moral of the story is to not be greedy, King Pluto got his wish but at what cost. The greed clouded his judgment and it lead to the death of his daughter.