probably won't surpass him in fame until he dies.
But in terms of achievements it seems like he's done similar, if not more. He led a war that ended 2 yonko, took down 3 shichibukai and made 1 bow down to him on his crew, trashed impel down/enies lobby and just one shot an admiral.
Roger got a treasure that no one even knew existed or competed for. His biggest rival whitebeard wasn't even a rival they just had a play fight from time to time, and he got seriously lucky with Shiki. Xebec was his only big moment, but it was stated that infighting brought them down so it's tainted until proven otherwise. Not doubting his strength btw, just what he's achieved with it.