The crowd almost jumped from surprise when they heard Streson's words.
A noble is here!
Not just any noble, it is one of the rising stars, Van, one of the Idiotic Rivals!
However, that is only the title of the fellow nobles to the two of them. If the commoners would say that in front of Van, it would be offending and inappropriate. It would shame any of the two and either of the noble can bring punishment to the commoner.
Even if it is unfair, power is the law. Nobles became nobles because they have a talented bloodline. If laws were to disappear, they are strong enough to make the commoners their slaves while the commoners won't have any power to fight back.
So thinking about it carefully, the commoners bowing their heads to the nobles is nothing out of the unusual since nobles are physically stronger. Law of the jungle!