If I have a fortress based on Silence, Light, Fire and Death, it could simply be an abbey of sun-worshipping dwarf cooks. Or it could be a fortress of warmongering fire mages. Unless a sphere is explicitly Good or Evil, there's really no morality to associate with it. After all, a barbarian civilization could see the sphere associated with barriers as evil, whereas a monastery could have the opposite opinion.
Is that 'aye' or 'nay' to morality? Either way, good examples.
One of my major frustrations with fantasy settings (which good sci-fi often avoids) is that there is always one dude is just irrevocably bad. You expect that he wakes up in the morning, kills a puppy, brushes his teeth with blood, and then arbitrarily burns down a village, because he is bad. Sometimes they have some sort of weak motive, like "Oooo, the gods abandoned me, my dad was an alcoholic, I stubbed my toe," but it never provides a real perspective. Dwarves, demons (and any other intelligent power), elves, humans, kobolds, and goblins should all have really solid cultural, ethical, and historical reasons behind who they are and who they fight. I was listening to a podcast Toady was in, and the goblins were brought up as sort of a libertarian society, which I thought incredibly novel and interesting. This is part of my problem with orcs (and one of my only complaints against Tolkien in general): orcs are designed to be antagonists only. (To be fair, there were some fascinating scenes with the orcs, such as when Merry and Pippin were taken captive, but those moments were few, and usually resulted in some arbitrary head-smashing).
My point is, a large group of people with similar interests will always believe they are acting in the right. Not that an absolute morality can't exist; it simply isn't a question that the average sentient being asks, and its a question that takes a lifetime to answer. Elves, humans, dwarves, goblins, kobolds; they aren't perfect, and from any other perspective, they sometimes seem downright gruesome and backwards. But they all tend to believe that their society is better, for whatever reason. You would never run into a goblin that prefers evil, even though he may worship demons and enjoy torture.