"...the production of security should... remain subject to the law of free competition... no government should have the right to prevent another government from going into competition with it, or to require consumers of security to come exclusively to it for this commodity." - Gustave de Molinari
The State is a governance corporation which has monopoly over permit and charter, and thus wields the power to contractually enjoin those who would compete against it. The State thereby takes advantage of the fact that order, security, protection, defense, judgment, justice, and civility are high-demand commodities, for which the average person is willing to pay dearly, whether in freedom, in money and resources, or in both.
The State - in the quasi-infinite knowledge that comes with the territory of those who seek to monopolize information - wants to maintain a monopoly over the legitimate allocation of social and economic welfare, because it believes that, as the representative of the people en masse, it is the only entity capable of judging what is in "the people"'s best interest.
It professes to give voice and effect to the interests of the individual, while undermining the ability of the individual to judge for himself whether he has retained a choice between his undiminished set of alternatives, and how and in what manner he may wish to act in accordance with the desires of others.
Right-conflationists tend to interpret the works of Ayn Rand as meaning that there is a kind of moral imperative to act according to one's own self-interest, and to be more self-interested, and also to reject the existence of reciprocal altruism out of a tendency to reject selfless altruism without promise of reward, all of which can express themselves as an imperative to be more selfish, and to only give to others if you think it may benefit yourself.
Acting in pursuit of self-interest is not so much a moral imperative as much it is a prerequisite for the scientific study of rational economic behavior. It is assumed that individuals act in accordance with the pursuit of their own self-interest under rational expectations. I feel that seeming to promote this pursuit as imperative often fails to account for determination of actions which could be described as irrational due to expectations based on incomplete and unique possession of necessary information and conscientiousness. Appearing to tell people to behave rationally only enables the voodoo economic scientists to manipulate us and control the circumstances around us better.