It's more than that. It changed my outlook in reality too.
The experience forced me consider the implications of taking any life-- whether it be in aggression, self-defense or even for sustenance. Others may try to kill me, but I can do better than responding in kind.
As a result, I refuse to own a gun and reduced my meat consumption. I have a rat infestation but won't deploy poison or traps that will maim them (losing battle, but still working on it). Etc.