Sacrifice is meant to be the bedrock of every true love or relationship. I mean, any love or relationship that lacks sacrifice from both parties or partners is not a true love or relationship and will never last perpetually.
See the light of beauty and love. See the magnificence of life. Enjoy the charm and mystery of creation. Enjoy the little beauties around you. Appreciate every little thing, every little love, and the blue sky above you.
Selflessness is not just thinking less about yourself. It's more of satisfying someone else's needs at your own expense. Yes! that is it and every true love/leader ought to be selfless. Besides, selflessness is all about self-sacrifice.