@mayintoronto A much more inconsequential answer relates to the mobile game #FGO where unit alignments are self reported (ie how the unit perceives THEMSELVES, not necessarily how YOU would judge them based on their dialogue/actions).

In the case of Altria Pendragon Alter, aka Saber Alter, aka Salter, I know WHY she thinks she’s evil, but I vehemently disagree. Salter is a GOOD GIRL who did NOTHING wrong.