Why would you need to marry someone based on their financial? Marriage isn't also from love of course you'll need some financial support for both of you of you're partner. Marriage is not something you do just for you convenience but also to support one another with emotional, physical and etc.
If I were to answer your options it's still depends and hilarious. Both are rich in different currencies in short they are both rich in different methods of earning money. It doesn't matter what is their status. As long it can support you on your needs then it's fine.
What is clear maybe he thinks that people in this forum have a materialistic mindset so that they offer thoughts like that, OP needs to realize that even though we are here talking about investment profits, trade, economic progress and other things related to financial freedom, it doesn't mean we will choosing a woman/boy to be a life partner depending on their wealth, it is an old or old way of thinking.
Even if I am faced with two choices, also between those who are rich in crypto or Fiat, in my opinion it is not important to be my basis for choosing because basically between the two they are rich people, why should I bother choosing between them because the most important thing is the character and nature of the partner us, as long as he wants to do good in crypto or other fields it doesn't matter.