If an Apocalypse happen,the only 2 valuable assets will be FOOD and WATER.
Bitcoin is a line of code(or a number),but gold is just a shiny useless metal.Will you eat gold,when you have no food?Will you buy food with gold,when nobody accepts gold?
In a post-apocalypse world,metals like iron will be more valuable than gold,because you could create useful tools with iron.
I get your point about the "fake rich class",but Bitcoin has nothing to do with iPhone or Tesla.
Bitcoin is supposed to be a currency,a medium of exchange,not a consumer product.
Rich people will always be seen as a cool and having high social status,it doesn't matter if they own Bitcoins,Tesla stocks,the new iPhone or something else.