iPhones, Tesla might be overpriced "products" which the middle class might buy just to feel that he will be "rich" but bitcoin isn't a product, it's a currency itself.
Indeed, sometimes people having an Iphone or things with signature brands like Gucci etc. etc. is just a product of social media pressure. Some people tend to push themselves going on what's hot despite of inability to sustain such things — being social climber at its finest.
But in the case of bitcoin, you are not considered social climber when you have one simply because you are investing. Imagine, you can be a trader even having a small capital only. Nice, isn't it? Thus,
Financial Literate is a much better term for you

.
There might come a time when something unnatural might happen causing no phone, internet and electricity but I don't see that coming for the next couple of centuries!
That's right lol. Mankind is not that dumb anymore. We can fix it. The only problem with us is that we are doing damage on this planet even though we are aware of it so I hope we will realize in the future what we done wrong before its too late.