Dictatorship is defined as an autocratic or authoritarian form of government in which a government is ruled by either an individual or an authoritarian party. In dictatorship, a particular individual has great power in the government and exercises his own will while taking the decisions.
Here, masses are ignored while taking the decisions. The dictator or a few powerful individuals have all the economic, social, intellectual and moral powers to take decisions. Such regimes justify, that it is better for the power to be concentrated in few hands, so that some goals can be achieved at a quicker speed.