Remember too, that there is real wireframe and fake wireframe when displaying a 3d model.
Real wirefame is you seeing the real polygon edges that are used to create the 3d model, although it is accurate, it isn't as clean looking as fake wireframe as you can see all the polygons, the ones in the front and back. The polygons are triangles (usually)
Fake wireframe is usually what you see in movies when they show a wireframe of a 3d model. Fake wireframe uses squares usually of equal size and is rendered onto the surface of the model to give the impression that those are the models polygons, but in reality it is just a texture. This is a much cleaner look as you can only see the front of the wireframe, all the back polygons are hidden.