Bruce has posted the "Hidden Word" and also many Baha'is recite daily the following prayer:
"I bear witness, O my God, that Thou hast created me to know Thee and to worship Thee. I testify, at this moment, to my powerlessness and to Thy might, to my poverty and to Thy wealth. There is none other God but Thee, the Help in Peril, the Self-Subsisting."
(Compilations, Baha'i Prayers, p. 3)
So the "reason" God created us was to know and worship God:
"Thou hast created me to know Thee and to worship Thee"
Are there terrible and awful circumstances in the world we live in? Most certainly. One thing that happens is that people will take photos of these things and share them and that's commendable, but does the photographer have a human responsibility to do something to allevaite suffering? Will he give some water or comfort a suffering child? Will he ask why international relief agencies have not intervened to help? It may be they have been prevented by some reason?
Seeing humanity as one and living a life of service has been demonstrated by saintly people...The question: "What will you do to eliminate suffering?" Has been asked by the great saints and sages for millenia..