That's probably due to using Charisma as a dump stat (j/k).
I don't know, I don't imagine that as any sort of save (or roll), I think in any job where you have power over life and death, whether it be a soldier, spy or doctor - it'd be hard adjusting back & Soldiers do go back to normal lives, for every one that has problems there are many more who live normal lives.
If you wanted a soldier who couldn't let go, it'd be best handled as a subplot I think.
That is brilliant.
::tucks it away for [REDACTED]::