I'm suggesting that the problem isn't the camera. The camera doesn't measure the scene the way you want it to. You need to tell the camera what you want it to do. Raising the exposure doesn't mean the camera is getting it wrong. It means you are adjusting the exposure based on how the camera is measuring to better reflect what exposure you want - if that makes any sense.
Yes I understand that now. I think earlier I was thinking that if I put my cursor right at the center of the exposure meter then I should always get a "perfect" exposure. I guess that's wrong. we have to look at the histogram and decide for ourselves if that's the right exposure or not.