WHY THE MOTHER NATURE TAKES EVERYTHING FROM ONE AND GIVES EVERYTHING TO ANOTHER?

Last week a patient admitted to our unit. He was 65 years old. Though he had to work for his life. He wife was dead. His two children had abandoned him. To double his misery he recently developed a tongue CA.
He was admitted for an Oesophagoscopy. It too went wrong and his oesophagos got ruptured. Now he is with not one but two I.C. bottles. He is suffering to the fullest and everything doing behalf of him seems like going wasted.
Every time I see him this question comes into my mind.

WHY THE MOTHER NATURE TAKES EVERYTHING FROM ONE AND GIVES EVERYTHING TO ANOTHER? Is this justice enough?