Bitcoin is not for the rich, Satoshi made it for everybody even lower earners can still buy it gradually and hodl for years and with time they'll be able to generate more income for aggressive accumulation, if that man has waited till he got a higher paying job maybe his portfolio would've been empty or very little, but he was determined to invest using income generated from collecting and stayed patient to build his portfolio, he's a true determined Bitcoin investor.
I agree, Bitcoin is not for the reach but its not for everyone too. Only those who willingly embraced the technology accepted it for what it is and use it. Meaning, many people have heard of Bitcoin but they wont use it, invest in it or trade it unless they start having that belief and conviction. The moment they start to have the change in mind, they become a different person and by so doing they are not true believers of Bitcoin.
My point here is that, Bitcoin is meant for true believers. The aim of Satoshi is to let anyone have access the use of Bitcoin at their convenience. And I think that part has been fulfilled. We have seen huge adoption, and many industries using Bitcoin as a financial gateway.