The more awareness grows and consciousness evolves, duality seems to slip further and further by the wayside. It's rather interesting because for the most part we all have some sort of moral compass, even when it conflicts with our own nature or that of another, but perhaps that's why it's called a moral compass in the first place. The general nature of a compass is that it always points in one direction even when we turn it. The direction doesn't change, only we change relative to it and in this same way, perhaps our morals never really change and when we choose not to follow our own path it's simply our own lack of awareness of our own morals or how we're altering them.
It seems to me that people tend to only think about morals one of two ways: Either black and white thinking and viewing everything that happens as right or wrong, or the alternative, viewing morality in some variation of a sliding scale of grays. We can spend an eternity debating morals and generally we all vary to some extent on our own perspective of morality, so that's likely to never really get us anywhere. Rather than get into that whole school of thought, I'd rather discuss why I feel that duality is fundamentally as necessary to existence as it is pointless for us to debate whose perspective is correct.
Thinking about consciousness and awareness, it seems clear to me that all existence is relative. We must have contrast to distinguish between different aspects of existence. If we walk into a forest and look at every tree, touch them, memorize the patterns, it should then become clear to anyone that does this that no two trees are identical. Any naturally occurring rocks or clumps of dirt are going to be unique as well. We can see that these things are all different while fundamentally being the same things to some extent. Sure there are different types of trees or stones that are formed differently, but they are still trees and stones. Why don't we view humans the same way?
We know that we are all different, but at our core we are all ultimately the same thing. People get caught up fighting over ideologies and differences, but the distinction I see is that at some point if we can't reconcile these differences we start to see certain others as less than ourselves. I can't say that I'm drastically any different, I try to treat everyone with respect and keep an open mind about others, but to some extent we all get hung up on our own perspective. It's true that some of us probably handle these discrepancies or contrast in a less extreme manner than others, but I find it interesting that as long as we are all here having a human experience there will always be disagreement of some kind.
The fact that we all seem to notice these differences and have moral ambiguity leads me to the train of thought that consciousness actually exists in the contrast. No one could be "good" if there were no "bad" people. We could never view ourselves as "right" if we didn't view others as "wrong." Shifting to a broader perspective or greater sense of awareness it seems that this extends beyond on our own individual discrepancies and into the environment and reality around us as well. If our reality changes, so do we and in return if we change, our reality shifts as well. Ultimately I feel that if existence is the meal, perhaps contrast is the seasoning that gives the meal flavor. It certainly keeps things interesting from my perspective anyway. Namaste.