You know, I think you can interpret Nietzsche's slave morality as the process to master morality. For example, the enlightenment was supposed to free society up from faith-thinking and introduce rational thinking, but (and he right criticizes it) it did not. I think the movement instead brought society out of older slave morality institutions into master morality and which are now considered slave morality again.

You also might enjoy this: http://blogs.law.columbia.edu/nietzsche1313/4-13/

EDIT: it's worth pointing out that Nietzsche also criticizing master morality too.