Those are good questions, but they’re kind of backwards. It sure seems to me players are more interested in money than modern. And winning will always drive fan/backer/nil enthusiasm.
I agree, NIL money is very important. I think most top recruits know that playing in a system that mirrors the NBA (spacing/pace/shooting) prepares them for the next level (and displays their skills better to NBA teams), which in turn boosts their earning potential after college ends. That's why schools that run a modern style, like Alabama, are landing top talent and thriving. But you're right, it all begins and ends with money.