But do you imagine that if you become as prosperous as the United States you will no longer have needs? Here the needs are even greater. Full bellies have not brought peace and satisfaction but dementia, and in any case not all the bellies are full either. But the dementia is the same for all.
Thomas Merton, first draft of Day of a Stranger
Day of a Stranger was written in response to a request from a South American editor who asked Merton to describe a typical day. Some of it feels like stream-of-consciousness writing, but he pulls dementia into his thoughts on poverty and prosperity.
Dementia is indeed wealth blind.
My mother’s wealth, even in her dementia, was the constancy of my father. He visited my mother twice a day every day. I never saw any family visit I-Can-Do-It Mary.
Hot Dogs and Marmalade 
You wonder if her family was the sort who couldn’t deal with it.