Okay maybe self centred is the better of the two to describe Evil, but it’s still not great and i even made that point in my other post that only trying to use a single word to describe an entire alignment yields subpar results,
Also it’s about degrees, you say that ‘a little’ self centredness is neutral but do it justice and apply the same to the others, only ‘a little’ benevolence doesn’t make you Good, ‘a little’ support of regulation or liberation doesn’t make you Lawful or Chaotic, But when it’s a core piece in that person’s personality/values i think it’s a good enough descriptor
Self-centred, self-interested, selfish, unempathetic, all of them are fine to describe Evil but at the same time they all lack that certain something.