The writer isn't made in a vacuum. Writers are witnesses. The reason we need writers is because we need witnesses to this terrifying century.
If you would like to write better than everybody else, you have to want to write better than everybody else. You must take an obsessive pride in the smallest details of your craft. And you must be willing to defend what you've written against the various middlemen - editors, agents and publishers - whose sights may be different from yours, whose standards not so high.