Being the grandkid of a wealthy person does not entitle you to his money.
I don’t think Einstein owed anything to his grandkids. I think it’s proper for him to leave something to his kids, if he has the means, but it would be his kids’ responsibility to leave something to their own kids.
It sounds like she was raised and educated in reasonably comfortable circumstances. That was adequate. If she became unbalanced later, she might get some assistance from family out of compassion, but not because she is owed it simply by virtue of being related to a famous person.
Her first mistake was not getting a practical degree/education and then marrying some fruit who spent his entire academic career seeking out a myth, while having a flimsy degree himself. She should have gotten something substantial and from what I can see, she didn’t stick to anything that could have ended up wiht her moving up the ladder to a more secure and prestigious position, along with higher payments. Knowing multiple languages could have easily gotten her a job with a high level business, or she could have made massive amounts of cash freelancing as an interpreter.
She wasn’t practical and perhaps gambled on living off of the family name, that didn’t work out.