I think the distinction is what we consider "the work of a man". I don't consider man's work to be just physical labor. A lot of things can do that. I think the true work of humanity is to use our ingenuity and critical thinking to do more. I'm not saying physical labor is not important, but there are several jobs that require physical labor and take thought and troubleshooting. I don't need a human being to screw in the same screw on an assembly line a hundred times a day, but a human being may be needed to determine why that screw ends up being a failure point in the final product.

There is of course lots to be said about the value of a hard days work and the toil and effort of physical labor, but I think we are all capable of so much more. It need not just be that.