Logic came originally from philosophy. Your question's like asking why we ever bothered with the Model T when Porsche is such a better vehicle. Modern philosop

Logic came originally from philosophy. Your question's like asking why we ever bothered with the Model T when Porsche is such a better vehicle. 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.