Finding purpose is such a struggle for humans eh? It may seem silly but often when I'm trying to understand the purpose of my life I look at my cat and wonder what purpose means to him since eating, sleeping and playing appears to be all is all that is needed to make him content. I often envy animals in this way. However, this should be all that children require too so I agree with you that abuse in childhood can alter one's purpose in the way that you described. Maybe my New Year's resolution will be just that, to eat, sleep and play more rather than work, worry and wearing myself out to the point of exhaustion all the time.
Love is better than anger. Hope is better than fear. Optimism is better than despair. So let us be loving, hopeful and optimistic. And we’ll change the world.