Someone endorsing the idea that their country would be better off if we cared less about how equal all people are is high in:

A) social dominance orientation.
B) the need for structured knowledge.
C) the trait of disidentification.
D) right-wing authoritarianism.

Social dominance orientation is characterized by a desire for one's own group to have higher status and dominance over other groups, including the belief that some groups are inherently inferior. The idea that a country would be better off if it cared less about equality is consistent with this orientation. Choice B, need for structured knowledge, and choice C, disidentification, are not relevant. Right-wing authoritarianism (choice D) may also be related to a preference for inequality, but the given statement specifically mentions caring less about equality, which is more directly related to social dominance orientation.