To include something, it should fit the genre, setting, and have "Balance." It shouldn't be a mechanic that puts the "fear" of sorcerers in the game because he has a possible wrath of god ability that can be stacked with opportunistic sacrifice.
1. Fear is flavor. So to begin with, GM's should run NPC's afraid of scholars in general, and not be targeting a known sorcerer because he knows that the sorcerer can't do anything in reprisal. That's metagaming, it's soo D&D, and it lacks imagination.
2. As I've said earlier, Alchemy needs a boost. Much of it doesn't match the power of the stories.
3. Delay tactics and preparedness on the part of the scholar should always be though about. Have last ditch items like poisons, alchemy, and spells like Death Touch, Entrance, and the like.
4. When all else fails, RUN! Hell, that happens a lot in Conan novels to both Heroes and Villians alike. One needs to know when to retreat before it's too late.
5. For PC scholars, they may need to take some levels in other classes showing the battle experience and lack of focus on scholarly methods.
Another option is to encourage the group to adopt a strategic mindset, and observe the enemy and plan a method to maximize the scholars ability.
6. I think Scholars could use some changes such making the Iron Will feat a bonus with a selection of feats to choose from. They should have a fear related ability such as Steely Gaze or Menacing Aura, as people fear what they don't know or understand and scholars use this to great advantage.
Any way, that's what I have for now.