I personally don't think Musk is worth even 1% of his so-called net worth. However, the meritocracy system allows some smart people to amass such an obscene amount of wealth and generally pay minimal tax. Worth should be somehow based upon how you help others and mankind. You'd be blind Freddy to think Alice Walton, "worth" $54 BILLION, is not at least just a little bit greedy when Walmart only pays their cashiers a lousy $10.78 per hour. Something is wrong when lowest paid workers can barely afford a decent meal for their kids or transport to get to work, whilst the super-rich are hell-bent on making more money than they know what to do with. Inequality is getting a lot worse in the US and other places (very evident during COVID-19) and I suspect this kind of greed might be a major cause of the civil unrest in the US.
It will not be long before the world has its first trillionaire and my bet is he will make it from the tech sector. However, Gates is working very hard at increasing his "net worth" with most of his investments in the non-tech sectors, including a large investment in Walmart. There might need to be a global movement (or revolution) to limit the amount of wealth a person can accumulate, or at least share wealth more equitably. Easier said than done. History has proven society works better when there is incentive. I would like to see a society where people are rewarded in proportion to their real worth.