Originally Posted by Dr.
It’s an allowable interpretation (imo) to present Jor-El/Krypton as being clueless about a yellow sun’s “super” properties. And in that way, Earth is just a “lifeboat” and Clark’s Superman destiny becomes entirely self-directed. But if you make Jor-El knowledgeable of the “science” (as is conventional) then, dramatically, his motives and expectations for choosing Earth need to be made explicit. I.e., it beggars belief that he’d send his son to a place that endows god-like powers - and then expect he wouldn’t use those powers (for one purpose or another). “…good character or bad, he’s going to change the world.”
I wouldn't mind Jor-El saying something like that, but he told his son that one day, the people of Earth would join him in the light. Does he believe the yellow sun would confer virtue on Kal-El?