Functional Difference Between Neckties and Bow Ties

What are the functional differences between a tie and a bow tie?

The bow tie does not flap around, so it won’t get in the way or get caught in something (great when dealing with food, paint, etc.). A bow tie does not bisect the torso.

The necktie can be loosened without taking it off. The necktie covers the buttons on the front of a dress shirt. There are a variety of ways to tie a necktie.

Is there a practical reason for bisecting the torso? Is a bow tie or a necktie more flattering for certain body types? Are there other practical or functional differences between the two (when used as neckwear. I understand a necktie can serve as a belt or binding in an emergency).