Doesn't mean it isn't something. Pride in your appearance can be just as important as pride in your intellect.
"Man I really wish this outfit didn't look great on me"
"Swimming? I'd rather not, I'm too comfortable with how I look shirtless, maybe when I gain a few"
"Getting in shape has ruined my life"
Sounds ridiculous? Good, because it is. Taking care of yourself involves physically as well. Want to take over the world but can't find the energy to take over today? Invest in your body as well as your mind, they rely on each other.
Do you have the best idea ever, but can't find pants that fit? How do you expect someone to trust you with a project/investment/relationship when you don't seem to put any effort into yourself? "Looks aren't everything", doesn't mean no one is looking.
You don't have to be Mechad Brooks(I'm working on it). Great opportunities don't wait to show up when you are looking and feeling your best. Work to always put your best foot forward.