I think you presented a false analogy. Some rich people buy expensive stuff because they can afford it. They have the finances to justify their purchases. They don't have to walk around saying "Guys, I'm super rich" because their possessions speak enough for that fact. In the same way, some fit people buy a form-fitting wardrobe because they look good in it. They have the body to justify their purchases. They don't have to walk around saying "Guys, I'm super hot" because their appearance speaks enough for that fact. Now, if they do start walking around saying "Guys, I'm super rich" for the rich folks and "Guys, I'm super hot" for the fit people, then I would most likely think that maybe they're arrogant and/or insecure, but I wouldn't think they are delusional.