If you want to look at it from a purely numbers perspective I suggest we re-label some of your variables. Net value (delta, etc) being the summation of all Cos

If you want to look at it from a purely numbers perspective I suggest we re-label some of your variables. Net value (delta, etc) being the summation of all Costs (you call this P for some reason) and all Benefits (You call this V, which is why I'm calling the result 'net'). We will presume humane solutions only. We are unwilling to leave people to die of sickness, mal-nutrition, exposure to the elements or lack of social safety mechanisms. To allow any of those preventable deaths is to admit that our society is morally and/or financially bankrupt. In short, letting them die or killing them isn't a solution. So, as a society, we must make them human again. Survival: We must ensure that they are able to fulfill their daily physical needs. They also require shelter, and medical care; just as everyone else does. Belonging: It is in society's best interest to identify what types and how much work needs, or is desirable to be, fulfilled. It is also in society's best interests to identify potential workers that can meet these needs and offer them training in that type of work. This can't really help with relationships, but forming a stable life and a community that can include the worker is a good foundation for that to happen within. Empowerment: Belonging, and being 'useful' and desirable to have around are likely the underpinnings of esteem and a sense of having worth. Without these building blocks there is little hope of becoming more than a slave animal or worse. Fixing these issues would help everyone, not just the most disadvantaged.