I would say that anyone who have enough time and money to investing in crypto is by definition wealthy.
https://blog.mollywhite.net/celsius-letters/ https://blog.mollywhite.net/voyager-letters/
I could see point if we were talking of hundreds, but we are talking of sums of over hundred of thousand. Which to me is very wealthy on global scale at least.
It's not just the wealthy, it's the cab driver giving crypto tips now.
Or at least they where before investing in crypto...