Easy...it is a matter of supply and demand.
If you are an ugly bloke, you are only going to get an ugly bird, or an attractive bird if you are wealthy-
If you are an ugly bird, you are only going to get an ugly bloke.
Now most of us come into the average group and to compensate for being average, whether male or female, one manufactures emotions like....personality. character, inner beauty, understanding, all emotions that are quickly washed away by the tides of time.
P.S I am ugly, but sheer charisma got me an attractive women.