SpaceX lifts more raw tonnage into orbit than all other agencies and private organizations combined iirc, and directly controls an ever-increasing proportion of US government space-based assets, to say nothing of Starlink. Tesla, while sales have dropped, has not really seen a corresponding sustained drop in stock price (where most of his corresponding net worth from Tesla is actually located) in the meantime, though we will see if that can be sustained long term (I, for one, hope it falls off a goddamn cliff). As for your other point, Twitter (now X) and Grok by extension are, frankly, not a major factor in his worth, when assessed next to those other factors.
SpaceX lifts more raw tonnage into orbit than all other agencies and private organizations combined iirc, and directly controls an ever-increasing proportion of US government space-based assets, to say nothing of Starlink. Tesla, while sales have dropped, has not really seen a corresponding sustained drop in stock price (where most of his corresponding net worth from Tesla is actually located) in the meantime, though we will see if that can be sustained long term (I, for one, hope it falls off a goddamn cliff). As for your other point, Twitter (now X) and Grok by extension are, frankly, not a major factor in his worth, when assessed next to those other factors.