Xu Huo was very clear about this: someone like Duke Tal might bear the title of a duke in name, but in reality, he wasn't as powerful as his wife. The family of Duke Tal didn't have many outstanding elite players, whereas his wife's family, originally of marginal nobility, had produced several exceptional gamers. Duke Tal's family had bet their fortunes early on by marrying into her family. Now, the brothers and nephews of the duchess's family were either high-level gamers or holding important government positions in Zone 011, so quite often, it was the Duchess who interacted with the outside world.
And for people like Duke Tal, perhaps the greatest contribution they could make to their own family was simply to increase the population and see if the next generation could foster a few talents.