thinking about it i'd say RZA too... think about it. its 20 years later from wu-tang's debut. not only are they still around, but they are legends. they can still tour the world off their name alone. they still are known and respected from the young to the old. he's now moved to being a hollywood actor, making movies, directing, writing, doing movie scores. along with meth doing the same. shyt even rae and ghost popped up in some movies. shyheim.. all them nikkas
they had video games, how many albums including wu the group, them as solo acts, and 100s of off brand dudes who were still stamped with the wu logo. speaking of solo acts, rza pioneered the way groups are signed. before wu, you were a group and there was no separate solo deal. he came up with that idea that they would not sign anywhere if they couldn't be free to sign to different companies as solo acts. and rza was the one producing all those. his credits are just about endless
and they never changed. you know their style and you know them and at 30-40 years of age they still killing it on mics and still the same wu that you heard 20 years ago. they might not be the richest.. although i do wonder what rza is actually worth. but i put that empire up there on respect and longevity alone