Isn't that why we're put on this earth to begin with, to make it a better place? It's not a religious quest; it's a humanitarian one.
If your wife briefly corrects someone with "Actually, I'm bisexual" during conversation, it hardly sounds like attempting to remain an object of desire to me. If she went around saying, "Actually, I'm still very interested in men, particularly you, you massive dose of sexual charisma," you might have a case.