It would be wrong to treat a friend who has a great life and is not going through a rough time, same way as a friend that has an aweful life and is going through a lot in life. It is imperative to treat others the way we would want them to treat us, meaning that if I were to be sad I would not want my friends to disregard it and talk to me about irrelevant things. Although god made humans equal it does not imply that everyone is same. Every person is an individual in their own way and it makes people feel good to know that they are unique, therefore to treat everyone differently, yet nicely is a human way to pay respect to other humans