Anyone a structural engineer?

Ya I know pictures would help, I don't have any way of putting them on here. Yet another reason to move into the current century. But I digress...

Eve wall, the whole wall has cracks running throughout it, wall is bowed in almost an inch, floor joists are 2x10s (which are 1 3/4 by 9) and run the length of the wall, rim is good. There's a wall that forms a bedroom about half way across, which I assume is a supporting wall, but it doesn't go all the way to the back of the house.

Question. Why would the concrete poured in the front of the wall cause more force than the dirt that would be put back? My first thought was to unbolt the plywood and take it off of the outside, but didn't know if only having one side supported was a good idea. I don't think tarring over the plywood would keep it from eventually rotting, thus putting slack in the bolts.