Twisted ones
Twisted beings have self-interest, sadism, AND true-care! They have it all. They like helping and harming others.
While this name "twisted" does sound worse than "cruel", in fact twisted beings are BETTER than cruel beings.
I only chose the name "Twisted" because its a good name for someone with sadism and true-care!
Twisted beings have the most variety within their little "square" on the morality map.
Some twisted beings are more like angels despite having a little sadism.
Some are more like purely self-interested people because their sadism and true-care are equal and both small.
Some are more like cruel beings because they have so little true-care but have sadism. Some are like freeists because they have so much true-care and so little sadism.
Some are just entirely in classes of their own, for example if they had A LOT of sadism and still a nice amount of true-care even if not as much as the sadism.
Or just having an equal amount of all 3 would lead to pretty far out and crazy behaviour.