Edison and Westinghouse both built fame and success on the minds and labors of their employees. Most engineers don't get famous. Tesla was just a particularly good engineer. He died in relative obscurity, but his ideas have given him posthumous fame after standing up so well and because of people's love of a good conspiracy.

I would say, before that car company, more people recognize the word 'westinghouse' than 'tesla'. The Westinghouse label is used for a brand of AC equipment, because of the name recognition. 50 years ago, when Westinghouse was a major appliance manufacturer, that would be more true.