S gaining profit from someone else’s work exploitation?

In contrast to Marxist theory, the Bible does not view it as evil for one person to hire another person and gain profit from that person’s work. It is not necessarily “exploiting” the employee. Rather, Jesus said "the laborer deserves his wages" (Luke 10:7), and by this statement he implicitly approved of the idea of paying wages to employees.

In fact, Jesus’ parables often speak of servants and masters, and of people paying others for their work, with no hint that hiring people to work for wages is evil or wrong. And John the Baptist told soldiers, “Be content with your wages” (Luke 3:14).

Employer-Employee Relationship

For some occupations, being employed by someone else is necessary, because some people sell services and not goods. In the ancient world, a maid or a messenger or the laborer in a field would work for someone else; and in the modern world a teacher or a babysitter, or a painter or a plumber, earns money when hired by another person. But the hiring of one person by another is also necessary for a greater production of goods. Many products can only be produced by a group of people working together. In the ancient world, shipbuilding and shipping could only be done by hiring many people, and in the modern world, building airplanes, ships, steel mills, and in most cases houses and computers, and many other consumer goods, can only be done by hiring other people, because the tasks are too large and too complicated for one person alone. But working in groups requires the oversight of a manager, and this is most often an owner who pays the others for their work.

This is a wonderful ability that God has given us. Paying another person for his or her labor is a uniquely human activity. It is shared by no other creature. The ability to work for other people for pay, or to pay other people for their work, is another way that God has created us so that we would be able to glorify him more fully in such relationships.

http://www.thegospelcoalition.org/article/is-gaining-profit-from-someone-elses-work-exploitation