Marketers also have the 99% / 1% rule. They aren't coming up with new marketing slogans all day long. They come up with 1 good idea per quarter and then go through the painstaking process of fleshing it out, testing it with groups, presenting it to management, getting design teams to execute, managing a project/budget/schedule, etc...

This is a general human rule that most people spend WAY too much time criticizing the effort of those of us who are working.