In a perfect world, there'd be some sort of tit for tat. But I don't think this is a just world. It's a great place to be, warts and all, but I don't subscribe to the idea of all things equaling out on this plane of existence.
I do believe that we are given challenges that help us to grow and reach our potential, but we still have choice. We help choose or determine our outcomes, including WASs. Otherwise, we'd just be idiot puppets playing roles and passively receiving the decisions of some karmic puppet-master.
If we end up with peace and contentment and an ability to live with ourselves, our emotions and thoughts even in the quiet of the night, then maybe that's b/c we've made choices that have not played havoc with our conscience, relationships, whatever...
If we end up jumping from one R to the next, have little to show for longterm friendships or healthy connections with our children, if we seem to always have a litany of unexplained physical ailments or lack of peace, maybe that also reflects one's choices.
Then again, I've met several very saintly people who've had to live through several months, even years of very brutal, isolated struggles involving things like pain, loss of loved ones, financial loss, before reaching some quieting of their life storms. Yet, each never failed to teach me s/t about living gracefully.
