Re: golden child?
Indeed, someone who is a golden child is PERCEIVED as unable to do any wrong. It's not uncommon to describe someone who was, in fact, a lying, bullying sneak who was also good at appearing good and kind when adults were looking as "the golden child who could do no wrong" -- because that's what his or her parents (or other adults) thought.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.