I think a good number of them have it educated out of them, by growing up in an environment where empathy is actively discouraged and portrayed as a negative trait.
There’s also conditional empathy, where you’re taught that there are certain groups to whom empathy doesn’t apply (or that empathy only applies to your group), or applies to a lesser extent (e.g., your pet dog deserves empathy — unlike the neighbours’ —, but that empathy only extends to taking it behind the shed and shooting it, not to paying for a veterinarian to take care of the minor problem it’s suffering from).
Did he conclude whether those people started without empathy or just lost it due to the things they did?
He did not. But it’s most likely both.
I think a good number of them have it educated out of them, by growing up in an environment where empathy is actively discouraged and portrayed as a negative trait.
There’s also conditional empathy, where you’re taught that there are certain groups to whom empathy doesn’t apply (or that empathy only applies to your group), or applies to a lesser extent (e.g., your pet dog deserves empathy — unlike the neighbours’ —, but that empathy only extends to taking it behind the shed and shooting it, not to paying for a veterinarian to take care of the minor problem it’s suffering from).