[s1artibartfast]

It sounds like we agree. I dont have a fixed definition for low overhead.

I just know that im not interested if I see a non-profit with 50% marketing expenses, 30% in other operational expenses, and passes through 20% to the beneficiaries (e.g. medical supplies, research grants, or whatever the stated purpose is).

I would call that high overhead.

This sounds extreme, but some large non-profits actually have numbers like this.