Yakuza have gotten so involved in legit business that I wouldn't even consider them organized crime anymore.... just organized.
They own so much shit in Hawaii.
I have Japanese style tattoo work, about 25 hours on my back. When I was young and got detained in a county facility, they
took mug shots and listed 'Yakuza' as my possible affiliations, LOL.
That is somewhat correct, they are involved in A LOT of legal business, but they also control 100% of prostitution, drug trafficking and sales, business extortion, "protection" business, almost all credit card fraud and lots of other shit.
They root so deep into politics and business, they are said to decide the prime minister by "influencing" people in rural areas to vote for a certain person, they were also one of the first to help with tons of money and manpower after the earthquake and tsunami, long before the military showed up.
But still, they are criminals. All the people forced into prostitution or "amateur porn", then it seems that some of the people that owed money to the Yakuza were forced to clean up at Fukushima, because the pay it good and it is all taken by the Yakuza as payback of the debt.