We're just not on the same page. I'm not sure how to emphasize the massive difference between the types of farming you're outlining here. They're so completely different we need new words other than farming to describe them.
When I spoke of my grandfather, I'm referring to grass farming. Corn / soy / industrial livestock farming has almost nothing in common with grass farming so let's completely throw them out for the sake of this topic and reword my statement to this; "My grass farming ancestors believed in working hard and passed this belief onto their children. Their work ethic probably had more to do with what was necessary to survive than their religious beliefs (protestant or otherwise)".