Doesn't make sense to me, sorry. I imagine paying for servers to run free Jitsi for all the people is tens of thousands of dollars per month (if not hundreds). Are you saying that it makes more sense than hiring additional developers for that money?
I don't think it's quite as expensive as you might think. Unfortunately I don't have sources right now but from memory the server component mostly handles session management.
Regarding the official Jitsi meet site: "On a plain Xeon server (like this one) that you can rent for about a hundred dollars, for about 20% CPU you will be able to run 1000+ video streams using an average of 550 Mbps!"