Why?

A strange question tonight... Why? Universally used to request more information on a given situation or event yet so specific in so many ways. My "Why?" tonight focuses on us ... humans and what we are capable of. Why are we the most compassionate beings on this earth and yet at the same time the most destructive??? We will risk our own lives to save the life of someone we do not even know and yet end it as well to destroy the lives of those around us. Lifesavers, firemen, medics ... and so many more will give their all to save a stranger and yet deep within all of us lies the capability to end the life of another at a whim!! Why??? Why are we given this great gift ... and this immense curse, all at the same time??? When the world around us is filled with so much hatred and pain, there are people that traverse these hardships, sometimes at the cost of their own happyness, to help others ( or animals for that matter ). The struggle inside of every human being between their own inherent good and the evil of hatred and misunderstanding that for some reason has been implanted in our human nature is a complex of questions that I guess will never be answered. We all marvel at the good that lies within all of us and the great feats of human compassion for both fellow humans and animals it reveals, yet we all crave and revel in the evil and pain of the suffering of others. Why this great gift ... when it is spoilt by this immense curse?? Why???