They did save quite a few artifacts, but there are plenty more that they just stole with no good reason. Like the Parthenon reliefs(?) Greece has been largely stable since it’s independence was won from the Ottoman empire WW2 not withstanding, or any Scottish artifacts the English sully with their hands, or quite a few Egyptian artifacts. Though I do think artifacts should be split between the home country and the excavation teem be it University or country specific or whatever.