The golden boy is the privileged, favorite child in a family. The golden boy is the child who gets special treatment, nice meals, fun activities, doesn't get in trouble even for something a standard bronze child would. They are also given money, cars, and are taken to expensive meals like sushi, steakhouses etc.

I couldn’t care less (but one must keep up appearances, right?)

The person whom appears to have an untarnished record of any kind. Most people considered a "golden boy" actually do have many flaws and are not what they appear.

being your boss's favorite for no reason

Slang term for a boy or sometimes girl who is everyone's favorite person, never someone who is popular or "in" with the crowd, but always someone who people feel good around and go to for laughs.

A golden boy, much like golden girl, is someone who is as humanly perfect as you can be. He is usually handsome, sporty, smart, has a sense of humor, is caring, understanding, brave, gentle, strong, and appreciative. A golden boy always keeps an open mind and looks at both points of view, and never judges cruelly. A golden boy might tease and joke around but this is just another one of their perfection details. Golden boys are usually blonde, or have similar to gold hair, tan ish, and have blue green or caramel eyes

Someone who can do no wrong, usually because they make a lot of money for their company.