利己

personal profit / to benefit oneself

sharp / favorable / advantage / benefit / profit / interest / to do good to / to benefit

self / oneself / sixth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / sixth in order / letter "F" or Roman "VI" in list "A, B, C", or "I, II, III" etc / hexa

egoism

harming others for one's personal benefit (idiom); personal gain to the detriment of others

to harm others without benefiting oneself (idiom)