Back in 1974-80 Dorian would still get a good place in the top 10, just like Ruhl now, because people would like to see a freak, and Arnold was a freak back then but if Dorian would compete, the whole standard would change, he would not win the title but he would sell tickets and there for get 2-5th place.
Arnold in 1992-98 would not even be a Pro, and if he was he would not qualify for the Olympia, the truth is that these pictures are always bullshit, it always looks like every body was the same hight and the same size, but you know that Dorian's waist was way bigger than Arnold's so why do they look the same size?
And the legs almost look the same size also, while the standard back hen was small cut legs, while Dorian's legs were freaky like they were supposed to be.
With that in consideration you would know that Dorian's was bigger in every way except for hight, so the picture is not good for comparison.