There are times where its handy to have readability, albeit in one-off situations.
The most relevent one I recently encountered was working with a team and needing to get some numbers crunched - I had knowledge of scipy and was able to show the code to others who hadn't used python but could still understand it.
Hmm, as the parent comment, you too confuse readability of a language with it being readily readable by non-programmers in that language.
Readability describes how clear, concise, non-ambiguous, etc a language's syntax is and also the code one writes is. It's not about sharing your code with others who don't know the language, it's about making actual use and collaboration in the language (in a shared project) better.
The most relevent one I recently encountered was working with a team and needing to get some numbers crunched - I had knowledge of scipy and was able to show the code to others who hadn't used python but could still understand it.