A new approach to medical ethics when it is interpreted as an applied theory of development has been investigated in this article. Relying on the ideas of German classical philosophy and Russian philosophy of unitotality, the development is defined based on the idea of any system as a set of basic polarities (thesis and antithesis). Their composition expresses deep polar definitions of the system and its polar portrait. A simulation model of this methodology is suggested using vector spaces with a scalar product. The development measure is introduced using the basis, the development law is defined, polar portraits of health and diseases are determined, the highest moral law is formulated as the law of development in the ethical sphere. To display medical ethics as an applied theory of development, three standards of classical medical ethics such as standards of mercy, ‘no harm’ and medical secrecy are analyzed, their polar interpretation is performed taking into account the suggested models. It is also displayed that all these standards express specific cases of the development law. Hypothesis of medical ethics as an applied section of development theory is supported, and a new research program of similar reinterpretation of other standards of medical ethics is suggested.