She sacrificed honesty 'on the altar of success'. [=she chose to be dishonest in order to achieve success]
They started a romance that eventually 'led' (them) 'to the altar'.
Her fiancé 'left her at the altar'.
(..) This is a great place. How long have you lived here? Thanks. I've been here about six years. And Rachel moved in a few months ago. See, I was supposed to get married... ...but, um, I left the guy at the altar. - Really? - Yeah. Yeah, I know it's pretty selfish, but, heh... ...hey, that's me. (..)1995 TvShow: Friends Title: The One with Two Parts: Part 2 Season: 1 Episode 17