Because the father -- one of the fathers of the Industrial Revolution, Adam Smith -- was convinced that human beings were by their very natures lazy, and wouldn't do anything unless you made it worth their while, and the way you made it worth their while was by incentivizing, by giving them rewards.
بسبب واحد من آباء الثور الصناعية  آدم سميث كان مقتنعاً بأن البشر  كانوا بطبعهم كسولين جدا ، و كانوا لا يفعلون شيئاً  ماعدا مايستحق وقتهم ، و الطريقة التي تجعله يستحق وقتهم كانت عن طريق التحفيز  بإعطائهم مكافآت ،