An algorithm for the influence of social inequality on the stability of the political system is analyzed. It is argued that the growth of social inequality leads to the polarization of society, creates prerequisites for the destabilization of the political system, reducing its manageability and efficiency. Excessive social inequality puts broad segments of the population on the verge of survival, while "deprivation" in the economic and social spheres of interests excludes representatives of these strata from the political decision - making process. As a part of the algorithm destabilize the political system as a consequence of the polarization analyses "conservation" of poverty, marginalization of the poor and the formation of the social base of political extremism. To assess the level of social inequality, the Gini coefficient is used, high indicators of which are a prerequisite for the destabilization of the political system. Overcoming excessive social inequality is considered as a strategic direction for the development of any political system that seeks to maintain its own qualitative certainty.
