If you think it's hardly believable, you are just not ready to go deeper part of this world.
You're probably still naive, too new and fresh to this realistic society.
Realistic people are uncountable. Some of them are born-to-be realistic. They just have this in their nature, from the minute they were born. Some raised to become a realistic person.Some people are influenced by the realism in this society. They are becoming a part of the realism because they think they have to be realistic to survive.
Sad, but true...
|I had uploaded this same image before, but i found it suits more to this post.|