people are too concerned with material posessions.if the sum of money is great enough, it will make people do things they may regret.they may lose friends, family,and loved ones because at the time, they are more concerned with the stuff they get than the people thaty are around them.they do not think that friends, famiuly, or loved ones will make them happy. they just want stuff. then, later, they are depressed, and hate them selves for what they did. money can make people do things that they may regret.
p.s. i have not read the book, but i am just judging by what you wrote.