Your oversimplification of cell division and preprogrammed cell death are triggering me. That's not quite how it works. It an attempt to not derail a thread for once, I'm going to move on and say let's discuss this in chat sometime...
It doesn't matter sometimes how accomplished, useful, appreciated, or attractive an individual is. Abuse can have very profound and lasting effects on an individual. It creates sociopaths, doesn't it? It also molds some in to the opposite end of the spectrum, turning them in to shy, weak creatures with shattered egos and low self-esteem.
This isn't going to be fixed by a new hair cut. That only works on people who have some self-esteem to build on.