There is a law of the natural worlds (the spiritual and the physical) and this is something I have understood: that for every genuine existence, for every real manifestation and occurrence, there are are ten thousand falsities. Before you meet what or who is genuine, you will first have met, or known of, what is fake; and ten thousand times so! There is no need to feel disappointments, any number below ten thousand deceptions renders you a lucky person! And you ask why is there a need for this to happen? Well, if you have not known what is false first, there is no way to understand what then comes which is truth. What is lesser is so afraid of what is genuine, that it finds it necessary to imitate and duplicate that imitation ten thousand times over, for fear that you will finally meet what is real. The more important that one existence is, the more imitations there are in the world.
It's not unfortunate that people aren't genuine; what's unfortunate is that insincere people try to act sincere and in doing so, mislead and deceive the other. I would rather meet a person who is not amiable and who does not feel any burden to act amiable towards me, than to have the misfortune of knowing people who feel like they need to be gracious and compassionate so they will appear to be good people, whilst possessing none of those qualities within themselves! It's the latter that causes the pain in life. And that's another reason why I don't believe in religion; I have observed that religion tells people that it is highly prized a quality to act kind and compassionate and so on and so forth, but some people just do not have these innate qualities within them! We get deceived, and I'd rather not be deceived! I'd rather be able to see a person for who he/she is and not judge a brute for being a brute, but avoid the brute who carries the burden of acting like a wonderful one!