Trade is done for acquiring gains, profits and wealth.
And for that matter, all economic activities are done for some personal gains - in the short term or in the long term. Each person, under the system, tries to maximize his or her gains at the expense of another person in any trade transaction. The system, as a whole, tries to maximize the division of labor, division of knowledge and division of ownership in order to empower the system itself. The system also promotes the maximum inter- dependencies among individuals, families, communities and eventually among nations for even basic needs so as to make them totally dependent on the system itself. The system also promote commercialization of nature and its efficient and speedy and mass exploitation and depletion.