Hi! True, there is a sensitive chord touched inside of those who read. And if there isn't something in you which is somehow related with the feelings of the author then you don't click so well and profound with the story.
Reading is always a subjective experience. What brings me to tears might leave someone cold.
I have a soft spot for memoirs and for people who have succeeded in overcoming any harsh adversity. I have been through a lot myself and therefore I get more emotional every time I read a powerful book like this one.