If you receive $100 for work, that means you have already provided at least $100 in value to society. That society might gain additional benefit from how you spend your money is merely coincidental.
No, it means that there is at least 1 person prepared to pay $100 for the work. If you are manufacturing weapons that end up in the wrong hands. You might be doing quite a lot of harm to society overall. Your employer gains at least $100 in value. The externalities could be anything.
No, it means that there is at least 1 person prepared to pay $100 for the work. If you are manufacturing weapons that end up in the wrong hands. You might be doing quite a lot of harm to society overall. Your employer gains at least $100 in value. The externalities could be anything.