Everything has what many call pros and cons, trade-offs if we may call it. I believe in him saying such, but at the same time, his works would also be connected to a lot or tons of casualties globally. However, this connection is direct. The same can be with cryptocurrencies, it's just that I believe, crypto as young as it is have not contributed to casualties as much as his work did.
That is just my opinion, and is not backed by any data though.