Take chives, for instance. These vegetables are some of the most flavorful in the world. But when prepped using a blunt knife, the chives will be bruised and not cut properly... Then some of its flavor, the stuff that we pay for, is lost.
I guess this lesson is not just limited within the kitchen setting. Respect is something people have been taught to show, even as kids:
"Honour thy father and thy mother: that thy days may be long upon the land which the Lord thy God giveth thee." (Exodus 20:12, KJV)
And sometimes, as grown-ups, we forget.
I ought to really get myself a proper chef's knife.