Otherwise you're just outsourcing your critical thinking to other people. A system of just "You will be punished for X" without analysis becomes "Derp, just do things that I won't be punished for". Or more sinister, "just hand your identification papers over to the officer and you won't be punished, don't think about it". Rule of power is not a recipe for a functional system. This becomes a blend of sociology and philosophy, but on the sociology side, you don't want a fear-based or shame-based society anyways.
Your latter example ("Most people aren't interested in torturing babies for sport and would have a strongly negative emotional reaction to such a practice") is actually a good example of the core aspect of Hume's philosophy, so if you're trying to avoid the philosophical logic discussion, that's not gonna work either. If you follow the conclusions of that statement to its implications, you end up back at moral philosophy.
That's not a bad thing! That's like a chef asking "how do i cook X" and understanding the answer ("how the maillard reaction works") eventually goes to chemistry. That's just how the world is. Of course, you might be a bit frustrated if you're a chef who doesn't know chemistry, or a game theorist who doesn't know philosophy, but I assure you that it is correct direction to look for what you're interested at here.