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Why do deontological theories emphasize duty and obligation?
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Ethics
Detail of the stela inscribed with the Code of Hammurabi showing the king before the god Shamash, bas-relief from Susa, 18th century bce; in the Louvre, Paris.
Deontological theories emphasize duty and obligation because they posit that the morality of an action is determined by the nature of the action itself, rather than by its consequences. In this framework, certain acts are considered morally obligatory regardless of the outcomes they produce for human welfare.12
The core reasons for this emphasis include:
- Inherent Moral Worth: Deontology holds that actions possess moral worth only when performed out of respect for moral law or duty, rather than from personal desires, inclinations, or the pursuit of happiness.12
- Formal Principles: These theories are often formalistic, meaning they rely on conformity to universal rules or laws. For example, Immanuel Kant argued that one should act only according to maxims that can be willed as universal laws.12
- Respect for Persons: A central deontological principle is the requirement to treat humanity—both in oneself and in others—always as an end and never merely as a means. This provides a basis for protecting human rights by establishing a duty not to violate them, even if doing so might otherwise yield a beneficial result.12
By prioritizing duty, these theories seek to establish a consistent, rational basis for morality that remains independent of shifting personal interests or external consequences.12