Sending small to large quantities of wealth worldwide quasi instantly and with small fees does have a tremendous value. Ask families of immigrants. Buffet hasn’t even invested in digital tech stocks. IMO, even after all the huge respect he deserves, he doesn’t get this technology. Other than that, I don’t doubt that many current “investors” are only FOMO movers
It's only very recently that he's started investing in tech stocks at all. And he's never on the leading edge. He's always been very clear about this. He doesn't want to invest in things that are bleeding edge and that he doesn't understand, and he's proud to say it.
Buffet is concerned with companies that will have a long term competitive advantage and thereby generate stable and growing cash returns over long periods. He doesn't generally invest in technology stocks because he says it is hard to determine which companies have a competitive advantage that will be durable enough to produce long-term returns.
Look at Netscape, MySpace, or Yahoo! for companies that looked valuable but ended up not having a competitive advantage. It doesn't have anything to do with "understanding" technology---the question is the ability to pick the winners in advance.