"One and done" may be best for BYU (questionable), but not for them - watch ...
... Whitlock video below (branding & development). Decisions made based strictly on money often don't go well.
It's also not good for the NBA brand. Note: I'm not buying in the Whitlock's conspiracy theory, yet.
I hope "one and done" becomes more of an exception rather than the rule in the NBA, in part due to NIL, even though the money may not be at the same level for lottery picks.