nedjer
Adventurer
This may sound silly, but:
I can perhaps accept the emise that the skills associated with being a good DM might be the same or similar to skills associated with being good in business, but...
In order to get to, " Playing D&D makes you better at business, " you also have to prove that, " D&D has measurably improved your DMing skills, " . And while I am sure there is some improvement, I think it is still distinctly possible that you either, " Have it or you don't, " when it comes right down to it.
Feel free to prove my concerns are completely meaningless.
Not meaningless, but the connections between learning enterprise skills probably don't lie in a game so much as the hobby.
Taking account of other peoples' perspectives is quite a valuable business skill, which can be fostered through RPGs by in-game role-playing, collaborating during play, out-game f2f social interactions and by observing how the GM balances players' and NPCs' perspectives.
The skills/ models based on that might lead to taking account of publisher and audience expectations when freelancing, designing a game, . . . opening an online merchandising store . . . starting any store.