Let's say you want to write in a certain kind of voice, and using one word in a certain places goes against your goal because of its sound. Is it wrong, then, to use a synonym with a sound that helps you accomplish your goal? Would this be wrong because no two words in the English language mean exactly the same thing, and because you must choose the word with the exact meaning you intend? If it is wrong to use synonyms, then how do you choose the tone or voice of your work? Is it really possible to do this through word order or sentence structure alone?