I disagree.
First, we do not have the size of the fanbase that either of the schools you mentioned have. Both Alabama and Georgia have alumni populations of more than 200,000 and most of those are in state. Tech's is about 126,00o and is spread out. Moreover, 31% of Alabama's alumni are engaged in supporting football ... my point is Alabama can afford to schedule filler games whereas we cannot.
Why?
Look at the NCAA data on attendance. Higher quality opponents lead to fuller stadiums. That's true everywhere. So, if Tech wants higher attendance, they need to play quality opponents our limited fanbase is willing to support.
I can't disagree with your second point. Money talks. But I think it's a short term high.