Sense of Values
According to each person's sense of values, each person will feel inferior, superior or equal. If we think that wealth is superior, then the moment we meet a wealthier person, we may begin to compare ourselves to them and feel inferior. Or if a person thinks that high social position is superior, they may feel inferior in the presence of any person who is greater in social position. Likewise, if a person thinks that popularity is the greatest thing, that person begins to feel inferior upon meeting a person who is more popular than himself or herself. If a person thinks that enjoying sensual pleasure is the greatest thing, then that person will feel inferior in the presence of some one that is enjoying more sensual pleasures. This is how people feel inferior or superior