The problem I have when exceptions are made to a pure "S curve" seeding in order to be "fair" because of a conference affiliation, it almost always unfair to some other team. How is that "fair"?
As a layperson, I don't really know how to answer your question other than to say that nothing is perfect, and what's just is what is fair to the most teams while taking into consideration what is best for the game.
One can't always expect the minority to rule over the majority when rules and judgements are applied by imperfect humans.
Is there an NCAA rule that stipulates that a pure S curve must be applied to how teams are seeded?
I'm so sure that's even possible even if there were such a rule.
i'm not even sure what a pure S curve is. If an S incorporates the characteristics of a circle, and PI is an infinate without an absolute number value, then IMO you're barking up the wrong tree.
Perhaps if you gave an expample then I could better understand the complaint that you're insisting needs to be rectified (or a rule that's not being properly followd.)
In the end, perfection is too elusive when it's needs to be applied to reality.
How the NCAA rules are implemented seems to generate common recurrring complaints that never ends.
I happen to believe that seedings and imperfections even out over time and if one team is discriminated against one year then the committee will come back and reward them in the future whether intentional or not like good & bad Karma usually naturally happens often enough.