I had some trouble finding the characters for that, so in case anyone else is curious -
救急不救贫。
My non-expert analysis, emergency is the characters jiu4ji2. The character jiu4 is save, ji2 is urgent, so save+urgent = emergency. The character bu4 is no, negative, not. The next two characters are jiu4 (save, from before) and pin2 (poor). These don't combine as a single word and are read separately.
With all that in mind, I read it as "It's save+urgent, not save poor". Interesting play on words.
救急不救贫。
My non-expert analysis, emergency is the characters jiu4ji2. The character jiu4 is save, ji2 is urgent, so save+urgent = emergency. The character bu4 is no, negative, not. The next two characters are jiu4 (save, from before) and pin2 (poor). These don't combine as a single word and are read separately.
With all that in mind, I read it as "It's save+urgent, not save poor". Interesting play on words.