Most human activity is trade. People sell their labour and buy things. Trade is merely economic work.
Not all human activity is economic work. There are those who can spend a lifetime in prayer or contemplation, requiring simply food, water and shelter in order to continue living but here are others whose work is prayer and contemplation in lavish and luxurious surroundings, enjoying the pleasures of a palace while they petition their gods with prayer.
Economic work, if it is to be successful for the economic worker, involves the prediction of what humans actually desire to improve their lives, as they perceive it. Spiritual work has no measure of success and and involves the prediction of what humans should desire to actually improve their lives.
This is important, but its importance is also its impotence.