The double relationship of art to social dynamic expresses its complex links to the political and economic powers. The influence of the Prince and the Market on arts and the critic of powers through the means of art have as main issues free speech and genuine experiences. In a context of redefinition of the social role of the artists, where the figure of a psychoanalyst is replacing the one of a revolutionary, and of the public space, less visible in the urban development and more enclosed in the media, the new artistic activism aims at conscience awaking more than at social structures changes. Its impacts are therefore compromised by the taste of the population for amusement and the control of powers over the media.