Based on this Eric Schwitzgebel unified theory of jerkitude, probably not much.
I submit that the unifying core, the essence of jerkitude in the moral sense, is this: the jerk culpably fails to appreciate the perspectives of others around him, treating them as tools to be manipulated or idiots to be dealt with rather than as moral and epistemic peers. This failure has both an intellectual dimension and an emotional dimension, and it has these two dimensions on both sides of the relationship. The jerk himself is both intellectually and emotionally defective, and what he defectively fails to appreciate is both the intellectual and emotional perspectives of the people around him. He can’t appreciate how he might be wrong and others right about some matter of fact; and what other people want or value doesn’t register as of interest to him, except derivatively upon his own interests. The bumpkin ignorance captured in the earlier use of ‘jerk’ has changed into a type of moral ignorance.
Some related traits are already well-known in psychology and philosophy – the ‘dark triad’ of Machiavellianism, narcissism, and psychopathy, and James’s conception of the asshole, already mentioned. But my conception of the jerk differs from all of these. The asshole, James says, is someone who allows himself to enjoy special advantages out of an entrenched sense of entitlement. That is one important dimension of jerkitude, but not the whole story. The callous psychopath, though cousin to the jerk, has an impulsivity and love of risk-taking that need be no part of the jerk’s character. Neither does the jerk have to be as thoroughly self-involved as the narcissist or as self-consciously cynical as the Machiavellian, though narcissism and Machiavellianism are common enough jerkish attributes. My conception of the ‘jerk’ also has a conceptual unity that is, I think, both theoretically appealing in the abstract and fruitful in helping explain some of the peculiar features of this type of animal, as we will see.