Choosing to do our primary work in the smaller, less noticeable spheres and devote our best gifts there is often a foreign thought to us. We usually want to jump from the center directly to the perimeter of impact, skipping over the areas most closely connected to us.
God does not want us to be strong. God wants to be our strength.
Perhaps a better way to say it is this: God wants us to be really strong, which is different from the way we might typically desire to be strong. We often want to be strong in a way that reflects well on us. God wants us to be strong in a way that reflects well on him. In a fallen world, these two wants are often at odds.