“Why do working people tend to not be as ruchniyus as Kollel people?”
1) The way the question was posed has a tinge of Lashon Hara. It should say “Why do Kollel people have more….”
2) Let’s properly define “ruchniyus “, otherwise we’ll be talking in circles.
3) Whatever exactly is “ruchniyus” (see above), I think that most of us view it as an internal trait. With that in mind, how can it be measured?