Oh, this is a little interesting, the phrase was used by Varro in his work being written contemporaneously with Cicero:
Quoteall worldly things [rerum humanarum...
Antiquitates rerum humanarum et divinarum - Wikipedia
en.wikipedia.org
"It was written in the 50s or 40s BC.[2]"
Cicero's "contempt for all worldly things [rerum humanarum despicientiae]" seems even worse than Philippians "επίγαιος". That's at least generally "on or of the world" but Cicero is advocating specifically contempt for all "human" things. Isn't virtue itself a concern of humans?