I think how many quality devs you can hire with that language is really the only question that matters 90% of the time (ballparking), so long as the language is designed for that use case, like don't use assembly to write a production webapp.
I don't know many devs that code with Ruby, I know of more devs that code in rust and Go which are newer by at least a decade? so the question of what actual benefits it has is important.
For Go, it makes it hard to mess up error handling and easy to deploy your apps since it's all a static blob, but memory footprint and optimization can be challenging at times. For rust, it takes a long time to do things, so fast shipping timelines might not be a good fit. For Ruby, does it have anything that makes it more secure, faster to code with,resilient to failure, easier to scale,etc...? I don't think anyone answered that here.
What can it do _better_ that the other languages you listed can't or can't as well?
