We are selfish. We don't think about others. We always think about how to wangle in every situation and create opportunities to gain something. Even people can kill their own people, relatives, siblings, even parents for the sake of money and property. It has become so normal for us that we don't show any surprise, even sorrow. We are habitual now. We don't react while reading newspapers or watching television news channels.
I know some people who take the advantage of the helping nature of other people and put them in a difficult situation to save themselves or their other family members. We should not help such people. One of my relatives is very conscious of him and his children. So he tries to protect them by exposing others to risk. I told him once or twice the same thing and told him that if others also think the same way nobody will help them. But there is no change in him.
If we have food for one person we can donate half of that to another person and the remaining we can eat. But if we donate everything we will not have anything to eat and we have to wait for somebody's help.
I have had several occasions when I used to help others in case of their health issues and I did not mind doing their jobs even for the extended hours. However, it did not mean that that the party for whom I rendered help should help me in the similar way. If you believe God, you will come across such a Samaritan doing everything for you in the crisis. Hence we must do some help for others for our own satisfaction at least.