Science or Creativity, why do schools have to choose?

Why does the government have to make statements that side one subject as being more important than another? 

The creative subjects are as important as all other subject areas. In order to gain a balanced and sustainable economy in the future surely you need to develop a balanced curriculum that generates a diverse range of skill sets and enables a broad range of passions.

In order to get a great building you need great architects and great engineers. One without the other lacks either vision or structure. By all means encourage more Scientists and Mathmeticians but also encourage more Artists and Designers as well.