Because we are each an individual, infinitely complex being, our different physiological, environmental, and cultural variations bring us to infinite different endpoints. Like it or not, we all see the world slightly differently and our creative expressions reflect this.
There is an all out war for search supremacy right now between two trillion dollar companies, with one having everything to win and the other everything to lose. In those circumstances a standard VC model of buying growth does not work even if you have a huge war chest, as you will be outspent no matter how big your investors are.