Walmart owners Walton family is nearly 5x richer than Reliance Group owners Ambani family, as per Bloomberg data. One of the primary reasons for this is Waltons' scale, generating $681 billion annually and serving 270 million customers/week. With over 10,750 Walmart stores worldwide, Waltons have global consumer exposure while Ambanis' diversified oil-to-chemicals empire is largely India-centric.