It is a sobering thought to consider that in addition to being intelligent all of our far distant ancestors were among the most murderous, thieving, rapacious and "immoral" humanoids who ever lived ... if they hadn't been we wouldn't be here because that's what it took to survive. Those genes prospered as well. Man's technology and mode of living has advanced because a very few special people over human history created technological inventions, forms of government and law, and forms of trade. The VAST majority of the estimated 100,000,000,000 (that's billion) people who have ever lived simply used what the "special" people gave us but the rest were, down at the bone, still little more than savage animals. They were then, and we are today.
Is it any wonder then why we see so much tyranny, greed, immorality and corruption even among the world's civic leaders, religious leaders or just about anyone you'd care to name? As William Golding said in Lord Of The Flies when explaining to Simon the nature of the beast ... "I'm close. I am part of you. I am the reason it's no go."
I did not will the fingers of my hands into existence, it took millions of years of evolutionary attrition to create them, as it took millions of years for us to psychologically become what we are and unfortunately we are not going to change any time soon. Lurking silently just below the surface of our confident pseudo sophistication lies the face of the beast.