It looks to me like you're applying a common day way of thinking about how humans act toward animals to Satan. Often, I hear people say things like, "humans feel they can torture or mistreat animals because they think they're better than them." This is exactly what you are trying to say about Satan. Yet, anyone who would make such a claim would also say that those humans are unenlightened, mislead, stupid, or just plain ignorant. Yet, you on the other hand are saying that Satan is an immensely superior and for more perfect entity. Then why would he stoop to such lows?
Yes, it is said in Christian cosmology that Satan was once Lucifer, the Bearer of Light, highest of all the angels in heaven. It was pride, belief that he was so great, so superior, that brought him to challenge God. He believed that he could like God Himself. I'm not sure where you get this "react like a spoiled child deprived of his father's attention" from. Unless you've heard some traditions that say that the Angel's one and only test was to be shown that Jesus (or Mary according to some) would be greater in heaven than they, and that this was unacceptible to Lucifer. However, that is not an official Christian stance. That is simply a tradition that is accepted by a minority. There simply is no accounting for the test that the Angels endured. The official stance is simply as I have described, that pride was Lucifer's downfall, that it was pride that motivated his actions.
Concerning Satan as being the one to torture bad souls, this is also a misconception. According to Christian cosmology, this is the role that Satan has taken up: Satan is the tempter, he tempts humans by mode of offering a lesser good in replacement of a greater good to our own detriment. At the end of time, Satan, and all the demonic hosts, and all the damned souls, will be trapped in hell forever. You must realize that the greatest pain of Hell is disconnection with God. Utter loneliness consumes the damned. It is not the picture that Hollywood has painted with the red demon laughing as he whips you into servility. There is no joy, there is no community, no connection in Hell. Satan does not torture you. You are the bringer of your own sorrow and pain. Not some outside entity. You and you alone.
Yes, it is said in Christian cosmology that Satan was once Lucifer, the Bearer of Light, highest of all the angels in heaven. It was pride, belief that he was so great, so superior, that brought him to challenge God. He believed that he could like God Himself. I'm not sure where you get this "react like a spoiled child deprived of his father's attention" from. Unless you've heard some traditions that say that the Angel's one and only test was to be shown that Jesus (or Mary according to some) would be greater in heaven than they, and that this was unacceptible to Lucifer. However, that is not an official Christian stance. That is simply a tradition that is accepted by a minority. There simply is no accounting for the test that the Angels endured. The official stance is simply as I have described, that pride was Lucifer's downfall, that it was pride that motivated his actions.
Concerning Satan as being the one to torture bad souls, this is also a misconception. According to Christian cosmology, this is the role that Satan has taken up: Satan is the tempter, he tempts humans by mode of offering a lesser good in replacement of a greater good to our own detriment. At the end of time, Satan, and all the demonic hosts, and all the damned souls, will be trapped in hell forever. You must realize that the greatest pain of Hell is disconnection with God. Utter loneliness consumes the damned. It is not the picture that Hollywood has painted with the red demon laughing as he whips you into servility. There is no joy, there is no community, no connection in Hell. Satan does not torture you. You are the bringer of your own sorrow and pain. Not some outside entity. You and you alone.