A lot of unwritten rules in baseball are there out of respect. Respect for the game, the field, the players, the opponents, coaches, and managers. We are talking mostly about respect between pitchers and coaches as it relates to mound visits. Respect for the game takes the form of things like, not admiring a home run, making a spectacle of it or displaying an in-your-face bat flip. When you hit a home run, you're supposed to act like you've hit one before.
Buck Showalter, manager of the New York Mets said, “You have to respect the game. The baseball gods will get you if you're not being true to the game.” Jackie Robinson preceded that respect statement by saying, “I'm not concerned with your liking or disliking me… all I ask is that you respect me as a human being.”