The westernized boiled down concept of karma annoys the hell out of me because of it's "do good and good comes to you," premise. I can't imagine what great evil a three year old could've done to be abused or slowly starved to death.
On the other hand the somewhat traditional idea of all karma being unhelpful because if I see a starving kid then consequences of feeding that child are not as important to me as avoiding being a callous thing that wouldn't act. Let's talk about karma if this topic interests you.