How do you deal with some people doing things that harm others and benefit themselves at work?

If a person does not serve himself, he will be destroyed by heaven and earth. I believe that for anyone living in this world, all their own fundamental interests are the goals of their efforts and development in every possible way. No one has food to eat but helps others to farm; no one has clothes to wear but helps others to spin yarn and weave cotton. The primary condition for human existence is the reason for one's existence, the quality of life movement, and the direction of life trajectory. As people go higher, the water flows together. It is normal for the general public to have selfish thoughts for themselves and their families, because helping others when their own lives are not good is noble to say the least, and disgraceful to say the least. If people do good things, they must want others to live well, but what if they are unable to do what they want? When others are doing well, but you are miserable, this behavior itself is a cold joke. Any human behavior is intentional or unintentional. For example, anywhere in the world, when we are active in a place with friends or other strangers, we will involuntarily look for benefits. One's own position, this is a human instinct of self-protection! Everyone is hypocritical and selfish, but everyone's behavior and purpose are different. Just like flowers, some are beautiful and fragrant, while others are coquettish and poisonous. Human nature is the same, but the mentality and ideological realm are different.