Earlier quoted context omitted.
I understand that we're mostly agreeing, and I think that we both have an intuition for what it means for something to be a profit center. Still, I'd like to show a gap in what you said: You talk about what kind of increase in revenue you'd have if such and such people did a better job, and what kind of ROI you'd get from each department. But the question is, an increase relative to what, or an ROI relative to what?…
I agree with you 100% and have attested to the same claims on other threads. With small exceptions, businesses exist to make profit. The whole discussion going all the way back to the original terms should be recast as "ROI positive centers" and "ROI negative centers". From that perspective I would agree, it's better to be working for an "ROI positive center" in the company. And even though it might seem the security…
However, close to the top of the pyramid is where the money is at. I think that's more important than whether it's core business or whatever.