Wapol was able to use his DF ability to produce toys and he became rich.
So I ask you, which DF ability or DF user in our world would produce most economical benefits?
I know someone like Enel, Ace can easily be the energy in our world,
but do you have anyone creative in your mind?
The best I came up with is Blackbeard's DF, he will be the ultimate garbage cleaner in our world.