Silly comparison, all told. Walmart is the single largest private employer. 1.6 million in the US. Literally 10x what Tesla and SpaceX have. Such that it is clear valuation is tough.

Look, Elon is worth a lot. Walton family is worth as much, as well. Just split among several people. None of which should be scoffed at. None are made more impressive by pretending the others are less.