The way I see our human purpose and reason for existing there is no Karma, but as you know in science cause and effect or Newtonian celestial mechanics explains how for every action there is an equal and opposite reaction does illustrate what I think you are saying! This applies to all human actions and behavior even when we can’t see the opposing reaction taking place in real time or in our field of perception and point of view! We don’t see the complete picture, only a fragmented vision is possible in our imperfect state!
I hear many of you nice people bring up Karma or pseudo-science/religion and philosophy that is many times a concoction of ideas and blending of other concoctions! Then, I always think how can people miss the boat so blatantly? Did the 2 year old baby where my former girlfriend worked in a major world renowned hospital with the best medical science and staff bar none face Karma when it suffered with a brain tumor and died one day during a procedure my Girl Friend was part of! It is visceral and real even now thinking of that and it was many years ago! Or how a major building caught fire and burned almost to the ground and many innocent lives were lost; was that Karma?
To me there are consequences for all we do as free-will beings! The action and opposing reaction situation at work again. “An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.” Again you see how Newton put things into a well-defined order, and we humans can choose to have order or disrupt order by our actions upon others and various circumstances! In order for us to have free will there must be principles and forces such as these in existence or there would be a complete “steady state” where nothing is happening, in other words an absolute and in this realm there is no such thing, we humans prove that to ourselves all the time!
I see all of this as the only way the Supreme Deity or Creator could get the desired result of gaining a beautiful family made up of many individual freethinking members; children of God, and indeed to me that is what we are while we travel on in this plane of temporary existence as flesh beings with immortal souls, for each of us must decide what pathway we choose as we grow as spirits of light and good or the opposing force of darkness and evil.
So getting back to that baby dying with the brain tumor, that innocent sweet angel was a sacrifice because of imperfection and sin in the world that suffered it seems for no reason, but the reason was profound to all who will see, to tell us that suffering will be part of any life, in fact this whole world suffers being imperfect, and the baby went on to achieve what we here still are hopefully looking forward to as our suffering continues; but there must be “faith” to bridge the gap between here where the suffering will continue always as long as this world exists in this form; then crossing over into the world to come of eternal salvation and perfection or in other words complete peace!