That sounds like it can be dangerous.
"Yeah, they're racketing and extorting us, but they're Yakuza, so it's okay."
It is but membership to yakuza groups across Japan has been in decline (decreased by 70 percent) over recent decades so they're not as lively as back then.
Very small chance for us to encounter and fight them in the street.

I feel like the advert was inspired by the Dreamcast start-up menu.
Might be since it's the most memorable one afterall.