Theres alot of people that didint they know that bitcoin is our new future. I all they know that theres many people are so rich even the poor man ever can possiblity to become a richer if he know how to work that bitcoin maybe the bitcoin will arise against to the people who needy some materials or anything that we needed... 
Anything is possible. Even if you are not into crypto. But you need to work your ass off before enjoying it. But the thing though with crypto is that if you are a long term holder, you don't need that much effort though, just mental toughness not to dump specially if the price is going down.
It's hard to spot who are the rich bitcoinist because it's all anonymous and anonymous means untrackable unless they want to announce their name.
Why you need to spot them? I don't think that someone will just spill the beans and tell the world that they have millions of bitcoin. Its now a high risk, specially there has been reports that bitcoin holders now are being hold up at gun point and force to give up their private keys and their bitcoins stolen.