Jiang, born into a merchant family, might not be considered suitable for upper-class families with their pretentious airs, but her past experience in helping manage business had broadened her horizon, shaping her into a straightforward and clear-headed person. She was also self-aware enough not to fight with the Lady for the household management rights like some others would without understanding their place.
It was precisely this refusal to contend that made her likable and trustworthy. Her lack of contention was due to her status, not a lack of ability. She had the demeanor and skills of someone raised as an heir, ready to manage the household when needed.
So now, with the Madam as the current mistress of the house having stepped aside, and Lu having also dropped the ball, even though managing such a large family was exhausting, it was not an impossible task for Jiang to take over.
This is why people say Jiang is quite remarkable.
