My mom isn't being as sensitive for this situation as she should

My mom is staying with me for the summer. Last month I had to take in one of my son's close friends as a foster parent because his life completely blew up. My son met him through boy scouts several years ago and they remained friends but didn't go to the same school. He name is Andrew and he went to private school because his family was insanely rich. He lived in a multimillion dollar home. My son went over there from time to time because he had private cooks, housekeepers, an entire arcade room. Very very rich kid. My mom has never liked him because he would just say very out of touch things. I never let it bother me. I think it's hard to live a life where everything was handed to you and not be a little out of touch. Towards the end of May Andrew's parents got arrested for tax fraud and embezzlement. Both his parents had committed severe tax fraud. All their assets are being seized. They didn't have family to take them and he has 2 other siblings so they've all been separated. They were able to find homes easier for his siblings because they're younger and it's easier to find homes for younger kids. I took him in and he and my son share a room. I've been gentle with him. His life was turned upside down and he lost everything because of his families choices. He's going from rich and going to a private to having to spend his senior year next year in a public school and sharing a room and is separated from his siblings. My mom has started to hate him more because he doesn't know how to do anything for himself. He doesn't know how to cook, clean, do laundry. He didn't even pick out his own clothes. Someone got his clothes ready for him every morning. I told him he can wear whatever he wants and we got him knew clothes and he's just chosen to sit around in the same pajamas everyday. My mom keeps complaining how lazy he is. I think he's just depressed. On top of not knowing how to do anything for himself. My mom complains about him and said there are people who are harmless and poor him for losing his game room. I keep telling her to be more sensitive because foster care is traumatic no matter how rich you are. She says he isn't traumatized because he's been to one home. Mine and I'm not abusing him. My mom is saying it's good his family lost all their money because now they can be humbled. I'm an extremely empathetic person. So I feel awful for him. I just wish my mom could be more empathetic