I'm not going to support a rule that say some people are inherently better because of their ancestry.
Feel free to do whatever you want.
Just reading this makes me think we've come to the reason for this disagreement about the noble audience thing at last. Of course, in the real world, people aren't inherently better because of their ancestry. However, in the periods we are looking at, where there were kingdoms and the nobility had real power, they certainly acted like it.
In the real world, the kings and queens lived under a whole system where they had authority based on their ancestry. And the other kingdoms all acknowledged it so that there could be peace and the different kingdoms would flourish. They inter-married, were educated by the same teachers and schools ... they were all linked. So a minor French noble could very much expect courtesy from, say, the court of Austria because everyone knew each other. No, they might not know this minor noble, but you can be sure they knew the king of France. In a tiny way, showing respect to that minor noble would make sure that the king knew he was getting respect.
And the notion, in fantasy terms, that the king and nobility are linked to the prosperity of the land and kingdom, that was also a thing. If you've ever seen the movie Excalibur, the idea that the land and the king are one literally receives divine endorsement.
Now in your game, none of those things may be true. If I'm playing in your game, I have to wonder how nobility works, since it seems like we've talking about a much smaller and more local authority. And that's great, but it's also something a character I'd play, who grew up in the world, would know. And they wouldn't even attempt the now infamous check to get an audience. They'd just get ready for the next dungeon or whatever adventure was coming next. And if I'm honest, that sounds like the kind of game I'd play in but not really get all that involved with.