You are asking why people are not interested in truth? They are not interested in it because they have been conditioned. For centuries they have been continuously conditioned: You are just a sinner, you are born in sin. This life is a punishment. You are not of any value, of any worth. There is nothing to be searched for within you, you have to look outward. You have to approach some god, some truth, which is far away, a long, long journey."
And the problem is that truth is just within you.
Truth needs no journey.
It needs only a remembrance.
People are not interested in truth because they have been taught not to be interested in themselves.
All the religions are telling you: be unselfish, be interested in others, serve others, love your enemy - even love your neighbor, which is certainly more difficult. But nobody says, "Love yourself."
-Rajneesh