Yes, this was the vibe I got too! That maybe LW had reason to believe her parents did value wealth and status more, and at some point the parents changed, and LW got left behind just as she thought she had succeeded.

Which could be a case of "Jane was the golden child, so when she turned out poorer than her sister we had to change our mind on what mattered" but could also just be a case of people being people and LW not fitting in the way she used to.