I seriously doubt anyone outside of military refers to their bosses as sir/ma'am. At least I never heard it and in many situation it will sound extremely sarcas

I seriously doubt anyone outside of military refers to their bosses as sir/ma'am. At least I never heard it and in many situation it will sound extremely sarcastic. People like to talk about their achievments whether it's graduating from Ivy League, getting medical degree or finishing marathon. I do not think it's a class thing.