How you carry yourself on the outside is a representation of who you are on the inside. People tend to discount things like wardrobe, hygiene, physical fitness, skin complexion and so on as being generally less important as who you are on the inside. I would say they are exactly the same thing. It takes a certain level of discipline in ones character to pay attention to ones nutrition, fitness, apprearance and so on. How you treat yourself on the outside is absolutely a reflection of who you are on the inside.
I realised this recently. Up until recently I never really have much importance to those things and I would give them much weight as to "who i am on the inside". I thought of them as something i just had to do to make it easier to get along with people. but now I realised that attention to fitness, nutrition, etc is just another part of selfgrowth.
Another thing that got me started on this idea is the japanese of the feudal era regarded a person who did not develop their skill with the sword as being uncultured. This meant that this external thing being the sword became an important part of ones personal development. It goes along with an eastern concept of "total achievement" which means that mastery of one skill was a reflection of your level of mastery in other skills.
Bringing back to dating
This is probably why its so much easier for a fit, well dressed, confident, intelligent, wealthy guy has a much easier time getting women. Its not about what they have, its about what discipline and care one much have to achieve and maintain those things. To them those can be a reflection of character. Thats an assumption anyways.