Final answer:
The version of egoism characterized as being especially typical of psychopaths is Psychological Egoism, which posits that all human actions are motivated by self-interest.
Step-by-step explanation:
A version of egoism that has been criticized for being especially characteristic of psychopaths is likely to be Psychological Egoism. Psychological Egoism is the belief that all human actions are motivated by self-interest, even when an action appears altruistic. Critics argue that Psychological Egoism conflates selfish desires with motivation and that it does not account for instances where individuals willingly act against their own interests, which challenges the notion that people always act to promote their self-interest.
Ethical Egoism is another concept related to egoism where it is seen as morally right to pursue one's own greatest good. It is paired with rational egoism, which suggests that it is reasonable to aim at one's own benefit. However, objections to both psychological and rational egoism point out that unbridled self-interest could lead to actions that are harmful to others and may not account for the complexity of human motivations and moral considerations.