Ruby was a day late and a dollar short. "Established language X, but cleaner and more elegant" has never succeeded on its own and never will; if you want people to switch languages then you have to have a clear selling point that language X doesn't do.

(Also if you ask me Ruby never was cleaner and more elegant than Python in the first place, at least in the ways that matter; there are definitely things it does better, but if one of your language's selling points is scripting style use then there are limits to the value of consistency)