In that side, there are trusted NGO's where you can partner if you are really aiming to help, like you said they manage to established thier good reputations and long lasting services to keep their partners and let them assist with good deeds that they wanted to provide, though same with what the pot above you there are NGO's which created to hide the true intentions and we can't deny the fact that they can be use as platform to launder money.
Some of those can be related to those who operates underground gambling they can hide and show some charity deeds but the main intention is to keep earning money out from the sight of the authorities.
Trustworthiness can be lost along the way. I don't question the work of some NGOs, but we're all in the same boat, and it's easy to fall into error, accepting shady transactions to the detriment of users.
Where money flows, corruption almost always comes into play. In gambling, where flows are very high, shady individuals find their way in.
I agree with that. If it ain't corruption, government employees or their bosses are trying to invest in those things where money flows either legally or illegally.
I still believe that underground gambling is happening. Games that could not be played in public, like dog fights or other types of gambling that cannot be shown outside. These kinds of gambling activities are where rich people mostly come because they need more of the excitement that they cannot get with simple gambling in UFC or boxing. They may want live action with blood all over the place, and sometimes those with money can get the entertainment they want from them.