It's not meaningless for new gen apps which trade a lot of db request for message passing. In micro-services app, when you update something, you propagate the change, and you have x client update for one db requests instead of having x + 1 db requests. In that context, broacasting quickly to a lot of clients is important.
When I see numbers like 50k requests per second it's meaningless, unless I have no database or some kind of in memory cache only db.