It may well be the right weight (body shape) for you, my brother is 6'4" and about 13, it looks right on him.
I used to be very overweight when I was about 18/19, so as a result I have a lot of leg muscle, and on me 14 1/2 looked awful, my ribs and spine etc properly showed, it wasn't nice.
It makes perfect sense to go more for health than image, you see so many guys in the gym that overwork certain muscle groups. I think this results in a freakish kind of image, I also tend to do mainly cardio.