Contrary to the huge involvement of various social groups, implementation of numerous aid programmes, social exclusion, discrimination, marginalisation are still present in various social groups all over the world, and various strategies of social inclusion, including administrative and legal tools for its practical implementation, prove to be ineffective. The aim of this article is to indicate mutual dependencies and conditions as well as social contexts determining the illusory nature of inclusion activities undertaken, first of all, in relation to people with disabilities, but also people excluded from reasons other than disability.