In Nature you also find (rarely) exceptions...

"Rather than studying ethical behavior in a moral contexts we should be less naïve about the role of people in these systems. Perhaps behavioral economics is more on-topic in that sense. I see native trust in markets as a form of intelligent design. I see prediction (as in portfolio evaluation) as more art than science – it’s like playing poker to see what price you can get."

May be it would be more profitable and "illuminating" studying the unethical behavior.
Nothing is more alien to human nature and world’s evolution than ethics.
When you take the part of the weaks (which is highly commendable) you go against nature.
Nature is about survival and survival in a world that is getting too small means discrimination.
As hard as it can look a world based on what we call "justice" is not following the nature’s rules.
I personally believe in ethics as the way for the human beings to master nature and I see no bad in it.
Unless you want a world following nature and following ethics.
It is also true that when you preach a world where man finds his happiness in the things he has you go against progress.
Progress was made by men who were not happy with what they had, men who wanted something more.
You could eventually work for progress and still live an ethical life.
But the ultimate goal for most men is NOT working for universal progress, but for their personal progress.
Being it mostly a more comfortable life.
Men work for filling their bowels and, when these are filled, to fill their brains.
Who works for working?
Well in Nature you also find (rarely) exceptions...