If this painting were to be sold today, its worth would likely be in the multi-million dollar range—potentially tens of millions. However, it is not for sale because it remains in a museum. The picture shows a fragment of "Flagellazione di Cristo" (1606-1607) by Caravaggio.
Although more than 100 years have passed, in my opinion the cultural change is not as great as you might think. The prudery of the old times has turned into the prudery of algorithms, which automatically remove the painting when posted platforms like Pinterest. History rhymes.