It's too bad that Ahab never stopped to ask himself that question.  God gave Ahab a second chance, but Ahab blew it and "sold himself to do what [was] evil in the sight of the Lord" (1 Kings 21:20).  For him, he gained some great wealth and power.  For us, we settle for far less: the acceptance of friends, a little money, a promotion.  How much would it take to buy your conscience?  Have you ever stopped to think about that?  What is worth so much to you that you're willing to trade your peace with God for it?  My guess is that if you really stop to think about it, you'll realize that it's not actually so valuable after all.  A moment of pleasure is never worth a violated conscience.