Excellence is often used as by the vicious to hide their atrocities. Power is not simply the application of power, it's about knowing when to apply the appropriate power. Equality of opportunity is not weakness. Equality of outcome is not guaranteed. The finest line is that those with the power are expected to be responsible for those who have yet to achieve that power. Naked selfishness is weakness as much as naked reliance. He himself created a teacher in Zarathustra and shared his writings with the world. I think you've misunderstood a great deal of what he wrote.