At age 85, she is not likely to be alive much longer to enjoy his financial success anyway. She might as well allow his son to enjoy it since he is likely to be alive longer than she.
Greed is disgusting.
You have reached a conclusion based on no facts:
You say "Greed is disgusting" , condemning the old lady, however, what about this possibility.
The geezer loses his mind, the son is taking his money and blowing it at the track. His long time pal, hires a lawyer to see what can be done. She doesn't need the money, she is trying to help her life long pal. I'd now say that the son is greedy, and "greed is disgusting". She let it remain as a court case, in hopes that she would recoup what she paid the lawyer.
I could come up with 2 or 3 more scenarios that fit the facts in the story, that make good valentines stories. don't condemn her based on this little article.