Russian companies often tend to proclaim their commitment to principles of intra-corporate social responsibility, recognize their strategic potential and report social investments into personnel. The paper probes into suggestion that results of employers’ social activities do respectively affect wellbeing level of employees and their labor life qualities. Principles of intra-corporate responsibility of business are formulated and an assessment is given of their practical effectiveness as revealed in results of 2011–3013 sociological surveys in Irkutsk region. Dependency is found out of intra-corporate social responsibility from the size and economic situation of the company, as well as a differentiation of social services depending on professional and hierarchical status of employee involved. A conclusion is made that the basic stimulus for effecting socially responsible strategy towards personnel is hard competition in target markets and labor market.