Do you think teams like TCU or Texas Tech would be where they are today if they had never shared a conference with Texas and Oklahoma? It’s not just the money, though that’s part of it. To be the best, you have to play the best. Clemson and FSU would undoubtedly raise the level of competition on the field, though neither has looked unbeatable in recent years.
Also, there is no grabbing other schools earlier without Clemson and FSU driving the bus. They’re the only ones with the money and hubris to push this agenda.