Why Christiano lost to Kaka

Christiano Ronaldo of Portugal and Manchester United lost both world and european player of the year 2007 to Kaka of Brazil and AC Milan. Ronaldo had a great 06-07season. The only reason why he lost might be because of his antics on field. His repeated diving inside the box to gain penalty might have gone against him.
You might also remember that Ronaldo did not win Gillete youth player of Fifa world cup 2006. The honour went to Podolski of Germany.