Employers and graduate schools will take into account that you attended an ivy league institution. I've found that a B/C average from one of those ranks up with an A/B average from a standard institution. Graduate schools will also look at your upper level course work and standardized test scores. I had little trouble getting accepted years later. Ironically, grad school was entirely different. I enjoyed it immensely and fared much better than I had during my undergrad years.
Best of luck and much success in your endeavors.