i think you can always make money from anything you want,
but it may vary
you need some investment before you can gain
this mode is different than any other mode (especially on popularity)
if you can somehow make this game popular on your place
maybe you can start small tournament on your place
and gain money on it
i remember while i still kid, young people on my village always make some kind of tournament
and it was fun too see.SPOILERif you want continues profit, maybe just working outside, instead.
but who know this time, maybe next time some one actually can make ton of money from this game
you need to be consistent ?