Most Helpful Guy
Beauty is a matter of preferences, and it differs through individuals and culture.
During the old times Skin with "Lighter" colours may indicate that the woman does not get exposed to the sun a lot which may imply softer skin and higher living class "a minority" with less work. But honestly how would like to marry a clueless princess over a hard working and independent woman, unless you are also a clueless prince. :P0