Earlier quoted context omitted.
It's a mistake to lump philosophy with theology. Philosophy requires no "givens", which is to say it is a valid field without requiring you to make any assumptions to partake in it. Theology, meanwhile, requires you first to assume the existence of God, and I'm one of the many many people who think that's a ridiculous beginning to a field of study. It's like if Nietzsche began his books by telling you his concepts an…
What exactly are the accomplishments of philosophy, aside from logic which is better studied by mathematicians and computer scientists?
Modern philosophy is important because it targets common assumptions and attempts to debate and verify them. The whole point of common assumption is that if you believe something that's wrong, you don't necessarily realize it without a lot of work. Philosophy attempts to shine light in those unknown recesses.
But "accomplishments"? I'd say the biggest casual accomplishment is that it serves as a great topic of discussion for people, gets people thinking together, and as a result brings them closer together. Might as well ask what accomplishments Shakespeare gave us, or Hitchcock. Not everything can be verified with an award and a metric.