orders with question marks and polite phrasing, you mean
I don’t think it counts that Scar was named by the Viper pilots. He almost certainly didn’t think of himself as Scar.
I think that the skinjobs have names because of their individuation. Also, it’s only the sixes that all have different names. All the 1s are Cavils, all the 8s are Sharons, etc. It’s only the Sixes that differentiate themselves to such a degree.