Coming to an individual, what are the factors that influence actions of self interest Basically, individuals are goal oriented, and as such, they depend on their skills and resource to achieve their goals. Also, in order to achieve his goals, an individual may look for information, evaluate alternatives, and choose the ideal option. In the absence of these, there is manipulation due to lack of information and ignorance.
There are also other factors involved in the process of decision making. "The rational ideal not only overstates the purity of information, it also exaggerates the rationality of the people using information. That humans do not make decisions in purely rational fashion is a point that needs no belaboring."  This is what Charles Lindblom has called "the preceptoral system," whereby "a system of social control is exercised by a highly unilateral governmental persuasion addressed not to an elite or to a bureaucracy alone but to an entire population"  "While the individual in the rational ideal is autonomous, free to deliberate and choose on the basis of accurate information, in the preceptoral system the individual is a puppet whose mind has been invaded by others and who acts as though he or she chooses voluntarily but is in fact directed from without." 
The practice of restriction or suppression of information is not only confined to t ...