Same same but difference, master and friend.
In general, the relationship between social friends is maintained when there is something they want from each other.
If someone is a true master, he doesn't want anything from you, only what you want from him.
Therefore, the relationship must always be polite to the master to maintain the relationship, while not always polite to friends or family.
In other words, your master can't be friends with you, until what you want from him disappears completely.
Therefore, a person who unconditionally treats the master like a friend is a pure person who does not want anything from him, or a person who only wants things without courtesy.
However, it is difficult for people who think a lot and are arrogant for their own gain to realize.
So the master first approaches the person who can be real friends.