Why do the have a painted statue of a roman emperor in a article about painted Greek statues? http://en.wikipedia.org/wiki/Augustus_of_Prima_Porta http://en.wi

Why do the have a painted statue of a roman emperor in a article about painted Greek statues? http://en.wikipedia.org/wiki/Augustus_of_Prima_Porta http://en.wikipedia.org/wiki/Augustus_of_Prima_Porta Also, weren't many roman and greek statues sheltered somewhat and protected against wearing off all this paint?