Humans have evolved moral tendencies appropriate for gregarious primates. They allow us to live together in tribes, and to benefit greatly from cooperative action. Specifically, they're child nurture and protection, dislike of the person who harms, like of fairness and reciprocity, respect for authority, loyalty to the group, and a sense of virtue/self worth through self-denial. The rest of our morality may be more various, since we get it from our upbringing, culture, education and experience. However, it's all influenced by our ability to feel empathy through our mirror neurons, and our evolved conscience, the feeling that some of our statements are not just personal views but rules of universal application (even though it's rare for any two people to have the same list of such rules.)Good and Evil are Illusions.
If two countries are at war.. The media on one side portrays the other as evil and wrong doing.
...And the opposing countries media shows the former as evil and wrong doing.
So, what's good? What's evil?
Isn't it strictly perception?
There's no ultimate world judge so who is to say? Shouldn't we all embrace our own light and darkness?
So no, there's no ultimate judge, and moral questions can be very complex and involve difficult conflicts, but they exist within evolved social structures with shared tendencies, so it's not all jungle out there.