We also know thanks to Moghedien that those simple commands (I.e. don't trust men, the DR is scary etc...), must be something the person already basically believes or wants ... "LIVE Liandrin" essentially made it impossible for Liandrin to put herself in a situation where she could kill herself, even though she had effectively been Stilled. For Egwene to be effected by something like this, the seed of the belief would have had to have been there or she would have struggled with the command.