Agreed. Poor/Filthy Rich is more of a character-defining trait than anything else. I doubt there will be any important elements of this campaign that will hinge on Ryu's resources.
Besides, his lack of money is diluted because of the Sugar Daddy that is the Masters family.
Street Fighter Game
Well, as long as the super-powered fighters only fight each other, it's not really a problem. Just use the scale for attack and defense abilities as if it only applied to super-fighters. (ie. +1 is okay for a super-fighter, like perhaps Krillin, and +5 is really awesome for a super-fighter, like Goku at his prime, etc.) Describing collateral damage as mountainside's being demolished instead of small brick walls also helps.
It's only problematic when, say, you want Goku to fight Bulma or other such cases where a super-powered fighter is interacting with a normal person. Obviously a +1 for Goku and his kin is not even remotely the same as if Bulma had +1 in anything.
You can get around this by assuming that anyone like Goku can obliterate a normal person with both arms tied behind their back. But, if you really want to account for any of these unlikely fighting combinations, scale rules will be included in OVA mecha that can apply.
It's only problematic when, say, you want Goku to fight Bulma or other such cases where a super-powered fighter is interacting with a normal person. Obviously a +1 for Goku and his kin is not even remotely the same as if Bulma had +1 in anything.
You can get around this by assuming that anyone like Goku can obliterate a normal person with both arms tied behind their back. But, if you really want to account for any of these unlikely fighting combinations, scale rules will be included in OVA mecha that can apply.