Why is good, good? But the good appears to have more moral connotations.... — Andrew4Handel
It would be easy to agree with you here, but after struggling with this for awhile, I would say morals are "taught" and here, good is an expression/measure of achieving those morals in the eyes of others and/or self-like in a myth-but we have different cultures with opposing views on the expression of some morals, thus opposing expressions of what is good, yet why is good, good, in either case?
In the recent cases of people bullying someone to the point of suicide, and coloring this in your mention of "pain", I think most would tend to agree that if someone interfered with the bullying, that the person who interfered did so because the pain of not doing so is greater than pain of not doing so. But that is only one color. We can color it in the idea that the person has great empathy for what ever reason and did so strictly from that color, or we could color it in social engineering, religion, etc.... I do not understand what makes good, good.