-It creates jobs e.g. social workers, probation officers,etc
-It provides a workforce to do the menial/ dirty/ dangerous jobs in society that nobody else wants to do.
-It provides an incentive to others
-It makes sure people want to become pilots, surgeons etc. otherwise why go to university and get debt and work that hard unless you will reap the rewards?
-Poverty helps the economy e.g. out of date food, last season clothes, old cars.