Used as an adjective to describe a company's stature, the word "Leader" has degenerated into an ineffective cliché, one that is not only a weak, second-rate aspiration, but a hard-to-measure milestone that shines as bright as a plastic neon glowstick...and lasts about as long as one, too.
As the boss of your family, you will likely find a mission statement handy, if for no other reason than to remind yourself of what you were thinking when you brought these people into the world. And why you shouldn't take them out. Corporately, a mission statement should address the employees, the shareholders, and the customers. Here's a quick primer on adapting those three categories to family life.