Why.

we are born and raised to believe that we live life to be happy, but essentialy there is no rule to society or the universe that explicitly states that, so the question to what do we do has no real specific answer, logically though we live to progress to understand and to develop. So that's where we find a division many find progress to have a different meaning so we as a society have come up with different ways to base our progress. These can be spiritual or scientific. With a spiritual approach one can assume a roll with little to no care for humanistic views one only has to achieve the criteria for a blissful retirement of sorts. When it comes to science one must come to grasp a theoretical end time scenario of the current society and work to progress through it and by doing so understand the world around us. These together have been working cohesively to create diverse views and such is the reason that we have people who are unconcerned and those who are concerned