The aim of this paper is to illustrate some difficulties connected with the global ethic. The author shows mutual relations between socio-economic domain and the public health. Beginning with Peter Singer’s argumentation, the author points that the inequality is the main factor hampering moral action. The inequality generated by contemporary capitalism has an immediate influence on the health of people. Individual charity is not sufficient to solve such problems like life expectancy, health care, starvation or global warming. According to the (...) author, liberation of medical practices from the power of capital is a condition of the possibility of the public health. (shrink)