Wealth can be increased to discover new uses for things that previously were not considered useful. Karl Marx, an economist bright, interested in the social problems of the time as a result of the great crisis generated by the capitalist model, which resulted in the class struggle, between capitalist and worker. These classes have a degree of dependence among themselves which translates in the relationship of the worker with the objects of his production, but these objects of his production are conceived as the things of nature incorporated and transformed by the subjects. The capitalist system is one where private individuals and business enterprises carry out the production and exchange of goods and services through complex transactions involving prices and markets. (Capitalism. Microsoft Encarta 2009). Accordingly, the conforming of intelligence and physical strength man, needs generated from the means to subsist.
This appropriation of nature to transform it for their own benefit is the which produces the struggle for control of the land. Material wealth can represent for people synonymous with happiness, although this concept is fairly broad and each person interprets it according to the vivid situation. Some people associate happiness with material wealth, because according to them provides them with everything they need. The vision that has emerged in the contemporary world is associating happiness with money, which creates the subject a level or degree of dependency, therefore in societies the phenomena of production (those where the worker transforms the raw in a given product which aims to meet needs), have cemented a great influence on the mentality of citizens: the emergence of the consumer society, understood as non-productive consumption which is the result of the decision of an individual or a family from purchasing certain goods and services, usually for their support and maintenance. Similarly, can result from the decision of a public administration, whose aims are similar: the maintenance of activity and the provision of services to citizens.