In any case, they are part of a business or their business is investing in their skills that generate profits. Theoretically, the employee is also an investor on a small scale. It is true that their returns are in the form of monthly salaries or annual returns, but they can often be considered more profitable than some private investments. For example, an oil engineer in one of the major international companies achieves more returns than any business in the small business sector of any country. Achieving wealth does not depend only on launching private project initiatives. It can also include investing in individual skills and acquisitions.