Your grandmother was very strong person and you should be very proud of her! Being able to not become bitter and angry in the face of poverty is a superpower.

That being said, maybe she wasn't aware of the possibilities of money. Many people are just happier if they don't grasp the world as a whole. There's happiness to be found in not comparing to others -- that's for sure.

Maybe if things turned out slightly differently she would be materially very ambitious. I am willing to bet that given extra education she might have wanted a bit more than she had.