Although I understand MP isn't everything when it comes to a camera....
I'd rather a company claim it has the the most MP in a phone, rather that claim it has the thinnest or lightest phone. I'm getting a little sick of that trend. Almost every phone I've used the past couple years has been too thin and too light for my comfort.
But yeah I totally acknowledge that 41 MP is gratuitous, especially in a phone, and even more especially without the proper optics, light sensors, etc.
I think that a lot of companies, Nokia among them, are just trying to completely bridge that gap between phone and camera. I don't know why, and I don't think it will ever truly be possible, but they keep on trying. As phone tech improves, so does camera tech, and a serious stand alone camera will always take better pictures. Now putting Android or another OS on a camera, that's easy. But putting serious camera hardware on a phone, that's another story.
The average joe just wants decent pics from their phone. I see people take pictures with iPads on a regular basis- obviously they're not going for pro shots. Most people don't know good photography when they see it, and Instagram pretty much killed off any chance of that ever changing.