égoïsme
I'm annoyed at his selfishness.
Son égoïsme m’agace.
His selfishness got in the way of his promotion.
Son égoïsme a fait obstacle à sa promotion.
You still think I act with selfishness?
Tu penses toujours que j'agis par égoïsme ?
— Talk to Her (2002)
Your selfishness will lose you your friends.
Ton égoïsme te fera perdre tes amis.