I agree 100%.
It's one thing to pledge to the principles and ideals, but one shouldn't confuse that with an individual. Principles, ideals and the need to serve are timeless. Individual people aren't.
It's cool for people to feel inspired by another. Blind loyalty, though, isn't cool at all.
That said, I need to think about my own pledge. The idea of setting goals pledging service to others is excellent.