Because that’s the foundation of a civilization? When humanity was able to produce more per farmer than they could eat is when society flourished the most. That allows other people to live off the farmer’s back and do other things. That might sound like they were taking advantage of them, but if Pythagoras and Archimedes and everyone else had to spent their days in the field, we wouldn’t have all that we do now. And I’m sure the farmers didn’t mind when those non-farmers came up with the tractor.