I think this is true and it highlights how valuable philosophy is to society. Philosophy helps people question things around them, and through questioning uncover new truths and solutions to problems.

I think that while she may be bettered by philosophy, it is not good that her daily life is "largely unchanged". A college degree is one of the best paths to upwards social mobility, and a young mother with two children would almost definitely have her life improved from more money. While philosophy undoubtedly helped her develop valuable skills, she may have been more pragmatic by choosing to major in something else, while still taking philosophy classes.