For your consideration
Jysayne is not a house born drow. He was raised as a merchant and then ‘adopted’ to the thirteenth house for a bit. After that his cousin took him in.
Organization of merchants differs from the clan. The one Jyses family loosely belongs to is lead by an inner ring containing Fi’n and unknown others. One step down from the inner ring is the leaders of the caravan trains. E’lena, Jyses mother, is a head of her own train her allegiance only to Fi’n her sponsor. Males owe allegiance to all the heads of the inner ring and pay heavy tribute then the few females.
Merchant is a profession considered ‘demeaning’. Truth is it’s dangerous. Trading with outsiders, even other drow cities leaves plenty of room for death to visit on the road. Such most of the merchant clans are made out of males and various slaves. They are pretty much the glue that keeps the cities and noble houses going.
So if anything of how Jyses was raises seems at odd with Drow culture remeber. Merchant raised and born. Not House. Major difference.