NoIL does not need any other stats. There is no realistically obtainable point at which you’d choose another stat over Mastery. You stack as much as possible without looking back, and aim exclusively for high Mastery-weighted items.
Losing a bit of Mastery value means very little. Mastery still scales our FOrb and if you’ve already geared toward NoIL your %mas corruptions will put Mastery ahead of all other stats at all mob counts.