Pardon me, but this seems to have little to nothing to do with whether utilitarianism should be considered a superior moral framework or not (if this has never been the point I apologize). If anything the article seems to lend evidence to the claim that given certain circumstances psychopaths tend to be more moral than the average individual, why stigmatizing a mental disorder and not its consequences is still tolerated in a society that seems to ostensibly have developed neural imaging is also up for debate.