Like driving a go kart vs driving a train.You are wrong. Big time. TV money most certainly did drive it then, especially when cable began in late 1970s.
The NCAA was intentionally suppressing TV revenue to preserve, in their minds, attendance. That exemplifies the difference in eras
The revenue gradients (in large part caused by TV were so much lower, it hardly was the decision point until the 90’s. Budgets of $5 to $10 million vs $120+ million
Conferences could exist 40+ years ago when rights were pooled above the conference level because they weren’t the conference’s we think of now. Revenue and scheduling a completely different paradigm than now
Conferences will need a CBA to govern to exist as we know them