What's wrong with amusement? Seriously, I'd love to have this in videogames - to import myself and other people into the game. I'd also love to get my hands on a good, fully automated [series of photos] -> [textured 3D human model] pipeline, for anything from silly renders to 3D printing mementos.

Technology is inherently usable both for good and evil. You get both by default. It takes active countermeasures - usually non-tech, like regulations - to limit evil applications without sacrificing the good ones. As a society, we do that to some extent, but unfortunately we're not as successful as I'd like (e.g. if it were up to me, I'd seriously curtail the advertising industry).