What individual(s)? You just mentioned a family and not an individual. Forbes lists Elon's net worth at $419 billion.
Also, any king or dictator effectively owns their nation’s entire treasury, including all real estate. Maduro, for example, is wealthier than Musk.
Tho in the Maduro sense, which is a dictator that just make sense while he is in power, it's not actually own by him.
Even the most aggressive speculative estimates from opposition figures, investigative journalists, or geopolitical analysts do not approach that figure.
No credible leaks (like the Panama Papers or Pandora Papers) have hinted at such vast assets tied to Maduro.
No intelligence reports or financial investigations from entities like the U.S. Treasury, the EU, or independent watchdogs have ever approached figures remotely close to hundreds of billions.