I believe that ideas are cheap, and are only worth as much as their execution.
Similarly, let's take a look at artistry. A musician who has the mind and ear of a true artist will never realize the beauty they conceive unless they have trained to the very highest level of technical capability. A pianist can't translate the interpretation in his head to move audiences unless he has complete command over the instrument as a technician.
A painter may dream of the most breathtaking piece of art, but unless they have the fine motor control and color theory to put brush to canvas and create their masterpiece, the vision is unreleasable.
And an inventor may have a world-changing product idea, but unless they know how to execute, that idea is nearly worthless.