Bad Luck and Poor Choices
Okay, I will probably set off a few folks with this perspective, but here goes:
Our fine lady came from a good family, but she married beneath herself (as she explains in the film).
Maybe it was an act of rebellion against her parents or maybe she was simply beguiled by a smooth-talking con-artist who wanted to marry money.
I feel sorry for her, but there is such a thing as choices and consequences.
She chose to marry a lying, cheating scumbag (no doubt against the wishes of her parents).
She raised a thieving scumbag son.
Her life must have been terrible, filled with disappointment. Such a hard life might have driven her a little mad. Denial and escapism would certainly be a direction to go; dementia almost welcome (at the end she seemed happy to return to this imaginary world of whispers).
Her childhood was filled with crystal chandeliers and giggling girls in pretty white dresses.
But life is tricky (and often dark, cold and cruel). So many choices to make.
Sometimes our future good fortune is completely out of our control and other times it can fall to a few poorly made choices.
In my opinion, though I feel bad for our fine lady, in the crime infested slum, I also think she is just a little responsible for her hard times.