Faraday's ideas on action-at-a-distance being caused by fields with specific field lines was what allowed Gauss and Maxwell to mathematically codify the behavior of electricity and magnetism. Now, there's no way of knowing if someone else wouldn't have had the same ideas as Faraday, but without Faraday, Maxwell and Gauss would've had to build on someone else's work, and that might have happened much later, or proven false, or any number of other outcomes.
So, no, we needed Faraday.