Lats are a very important part of a person's physique.
They add width to the body and give it that V look. It's a very big muscle and it can handle a lot of weight and resistance training. Lats tie in with all the other muscles in the back, especially the rhomboids which are in the middle of the back. A lot of exercises that primarily hit the lats, will work either the traps or the rhomboids as well. There is a wide variety of exercise you can do for your wings but try not to go for more than four, three should be enough.