From Wikipedia:
Anti-consumerism refers to the socio-political movement against consumerism, the equation of personal happiness with consumption and the purchase of material possessions. Consumerism is a term used to describe the effects of the market economy on the individual. Concern over the treatment of consumers has spawned substantial activism, and the incorporation of consumer education into school curricula.
Anti-consumerist activism draws parallels with environmental activism, anti-globalization, and animal-rights activism in its condemnation of modern corporations, or organizations that pursue a solely economic interest.