A Living Wage

A person who is fully employed should be able to earn enough to maintain himself well enough to be able continue to work at a job long-term. A stable, trained work-force that has enough money to meet its obligations is more productive than one that has to continually look for additional ways to augment it's income.

If your particular needs for a work-force include replacement workers, provisions need to be made for them procreating, and raising and training the next generation of workers.