Another good question is "Should the nation of Greece and the Greek people be allowed to profit off of pictures that the British Museum has taken of objects that are only in the British Museum because they were pillaged by British soldiers?"
It seems really bad that a nation can invade many other nations and pillage their cultural pieces to squirrel them away in a museum and then dictate to the citizens of those nations what they can or can't do with pictures of the artifacts.
The notion that the British Museum can tell Egyptian citizen what they can or can't do with photographs of the Rosetta Stone is pretty odious.