We are conscious during non lucid dreams as well. We just aren't aware they are dreams. If we weren't conscious how would it even be possible for us to perceive and remember the dream. I believe we still make small decisions in our dreams even if we aren't lucid. Are decisions are just different because in a dream certain functions such as our logic center doesn't work, but when we become lucid it is possible for our logic center to work again. Just because we are asleep doesn't mean we are unconscious, did you know during rem our brain is the most active, more active than when we are awake?