Meaning of "to say nothing of us"

What does “to say nothing of us” mean?

For example,

"Why does not the industry itself realize that yes, no matter much oil they discover, EVENTUALLY it is going to run out, and then where will they be, to say nothing of us? "

“It takes a strong man to deal with the scheming Sforzas of Milan, the Medici struggling for Florence…to say nothing of us blameless Borgias.”

Hi all potted out

The expression “to say nothing of us” means that “it goes without saying that we are also included in this point/topic” or “It doesn’t need to be said that we are included.”

One of your sentences was:

Here is your sentence again. I’ve added the “unnecessary to say” part:
Why does not the industry itself realize that yes, no matter much oil they discover, EVENTUALLY it is going to run out, and then where will they be, and also then where will we be?”

Amy