I think the reason why it aeems as though the intelligent ones always seems to struggle in areas that the beautiful ones excel is because they are obsessed with their intelligence.

They are not flexible enough to be able to adapt to what the society really really admires.

They feel with their intelligence everyone should bow to them, listen to them, give them credit and stuffs like that.

But the beautiful ones knowing that they do not know so much learn about social intelligence and understand the psychology around human beings and then they use that to their advantage.