celebrity networth?

I know this is a question that can't be answered, but do you think it's possible to compare the sums of money that Beethoven has made all over the world since his death? Is it reasonable to assume that it is significantly greater than someone like Elvis or Michael Jackson? You can get an estimate of a celebrity's net worth. Beethoven was what I included, but nothing else. However, they do include famous people who have passed away; for instance, they claim that Elvis is worth £300 million and Michael Jackson is worth £600 million (despite the fact that another entry claims that his music has earned £2 billion since he passed away!). I additionally understand that the further you travel once again into the past it turns out to be more confounded as you need to adapt to expansion, I think the most successful film ever is as yet Gone With the Breeze, whenever adapted to expansion. So, do you think it's even possible to guess how much money Beethoven has made so far, or do you think it's impossible?