society > morality > moral evil > evil nature or character > lack of magnanimity or noble-mindedness > self-interest > [adverb] > egotistically (5)
in an egotistical manner, as a result of egotism.
from an egoistical point of view.
Philosophy. In accordance with the theory of solipsism (solipsism, n. 2); in a manner characterized by solipsism.
In a self-centred, self-absorbed, or selfish manner. Cf. solipsism, n. 1.