Liang Weixiang offended the elder two for the sake of the third child's family. They were unwilling to provide her with any retirement funds, and she had nothing to say, though she was indeed too biased.
Liang Weixiang wouldn't suffer any loss from this matter. If her monthly income was reduced, she would just have to ask the third child to make up for it.
The third daughter-in-law was clever and didn't refuse to give. As the saying goes, since the other two wouldn't support, they would take care of her, considering the mother-in-law would live with the third child's family. They were all family, so there was no need to talk about money. This money could be used for daily living expenses like food and supplies.
In any case, when it came to meals, Liang Weixiang wasn't expected to pay.
