Mat 21:34 And when the time of the fruit drew near, he sent his servants to the husbandmen, that they might receive the fruits of it.

The economic assumption here is that ownership of land (or means of production, if you want to get all Marxian) deserves profit from the produce of the land. The fact that the "husbandmen" do all the work does not mean that they should get all the benefit. The owner expects a profit.

In this analogy, the landowner is symbolic of God. Again, the landowner is the opposite of evil. He is the one who provides the means of production for those who have nothing but their own time. Without God, we would have no means to be productive.

"The time of" is from kairos, which means "due measure," "proportion," "fitness," "exact time," "advantage," "profit," and "in season."

"Fruit" is karpos, which means both the fruit of trees and the fruit of your actions. In the later sense, it means "return" or "profit" as in a good tree produces good fruit.

"Receive" is from lambanô, which means "to take," "to seize," "to catch," "to apprehend with the senses," "to receive," "to accept," and "to conceive."