That's putting quite the happy face on Ayn Rand. She believed, fundamentally, that selfishness is moral and selflessness is immoral.

“My philosophy, Objectivism, holds that...man, every man, is an end in himself, not the means to the ends of others. He must exist for his own sake, neither sacrificing himself to others nor sacrificing others to himself. The pursuit of his own rational self-interest and of his own happiness is the highest moral purpose of his life." [August 1962 edition of The Objectivist Newsletter]

That is the exact opposite of Christianity which regards community, selflessness for the sake of others, and self-sacrifice as noble ideals worthy of emulation.