lee, I think the fact that Jon Kent is ingraining into Clark that he must decide for himself what his character should be and that he must take great care and thought to how his existence and power will shape the world says a lot and it is a very moral outlook. It was apparent to me that Kent was teaching moral and ethical lessons about how we should act and treat people in this life. But he also showed and awareness that it can be hard to know exactly what feels right in any given situation if you think on the consequences. I also really approved of it because while it was wise counsel to Clark, it's also just a generally wise line of thinking for anyone. It's real "The Heroes Journey" stuff. We all may not have the inherent power or infuence a Superman has, but we are all affecting this world one way or another. Understanding that it is our choices that bring negative or positive consequences into the world and lives of other people and that they define our self image and character all sound like a well thought out moral view to me.
But for Clark this is easier said than done considering how much of an influence his power and existence will have on the world, so much like his Earth father, Clark has to balance things out in a complex world of 7 billion other people.
I got all that from the one scene at the junk yard. It's why I just have to shake my head each time I see comments like "Costner's Kent was a paranoid sociopath" or "They had his father teach him to be afraid and that's it." Bovine excriment, I say.