It's true that many jobs really aren't concerned with getting really creative answers; they frequently just want the job done on time and within budget. Our culture makes it really hard to be creative, honestly; there's a very strong tendency to try to make kids fit their ideas within small pre-defined parameters that fit a standard imposed from some outside source. There's a lot of pressure to conform, to not be weird and unusual and odd. But really, creativity usually involves thinking outside the box, outside the cultural norms, outside the accepted set of answers.
It's really hard to make a living in this culture if you're stubbornly creative, stubbornly original and weird and don't fit into the norms. And that's really sad. Just think of all that we're missing out on. Clocks in your hand. Clocks within a cat. Time caught in a flower. Draw a clock. What does it look like to you?
