The Gorgeous Ones often feel entitled to be catered to or spent-big on, ironically because of something they deserve little credit for: they were born with good looks.
If only unconsciously, The Gorgeous Ones may believe they can get by on their looks, that is, they needn't work hard on their job skills, work ethic, or personality.
Many of The Gorgeous Ones can be quite cruel to others.
The Gorgeous Ones are more likely to use and withhold sex to get what they want. That can be true not only in a romantic relationship but in the workplace. You want to feel free to make choices on the merits not on having been manipulated.
The old song may have been right: "If you want to be happy for the rest of your life, make an ugly woman your wife." (and perhaps your supervisees.)
Of course, this all applies to both sexes.