Sure Musa didn't have those things, but not because of a lack of wealth. There is no point that you could increase his wealth to such that he would be able to afford those things. It takes some amount of resources and labor to produce an air conditioner, and Musa definitely could afford those resources and labor. Likewise, you are not richer than Carnegie or Rockefeller because you happen to own a microwave, you have orders of magnitude less capability to procure resources and labor, even if you have access to a slightly different set of resources and labor. Whatever you can currently afford, they would be able to afford if they were to spend their wealth in today's markets.