It was only a matter of time before innovation latched on to the capabilities of 3D printing to create useful items that improve quality of life. There are better things to make than belt buckles and pencil holders.
3D printing, while definitely impressive, is only one of many new manufacturing technologies. We can't expect machines to fix problems that our society hasn't. Even if 3D printers were flawless and cheap they would only print what we tell them to.