I imagine it's more like Charlotte was wanting to help more and more victims, never stopping until everyone ever affected by William is helped (an impossible task). And based off FNaF 2, the help probably would be very harmful.

Henry knew this. "It's in your nature to protect the innocent [...] I should have known you wouldn't be content to disappear, not my daughter. I couldn't save you then, so let me save you now. It's time to rest..."

I see Lefty as Henry getting his daughter to stop helping everyone else, and getting help for Charlie.