All creatures are disposed to what they deem beautiful or alluring. Elves love bobbles and multi-coloured flowers, goblins covet things that glitter, and we wizards not only value attractiveness but powerintelligence. I think if one has both, well, they do go a great deal many places; but, how one endures the great march of time is how they cultivate their natural talents and apply them because as you said: beauty fades. To just rest on the laurels of attractiveness is simply foolish. Wouldn't you agree, Lady Longbottom?