Rhetorical Questions in Parshat Korach

I'm wondering how many times Rhetorical Questions occur in Humash? How ubiquitous is it?

EG How many times they are employed by Moshe? Aharon?

Here is a small sampling I found in Parshat Korach

Korach, Datan va'Aviram
16:3

Moshe
16:9
16:11

Datan va'Aviram
16:13
16:14

Moshe and Aharon
16:22

B'nei Yisro'el
17:28

Can you tell the good guys from the bad guys by their respective uses of rhetorical questions?

Are rhetorical questions anything other than a rhetorical device?

Or do value judgments attach to the use of rhetorical questions?

KT
RRW