To respect the whole association of NBA ,what i believe is there are some occasion that bad calls happen from the ref in which i believe to be a intentional ,consecutive wrong calls are not a mistake.
But let us not call that to be standing as the whole organization like NBA.
Even in our country there are issues like this,that ref are being paid or the start player is setting to win the opponent for Big amount of money.
i still have belief that NBA is a pure institution and still Being fair to majority of the games.
Maybe there are only few occasions that the game is compromised, for whatever reason it may be. But I don't think players will want their game to be rigged as it is also difficult to fake the game inside the court. Fans and their endorsers will be affected if in case it is proven that at some point that particular game is compromised. The reason why it is only rumour. Their reputation is at stake if in case something valid goes out.
Considering everything but there's always the right amount of money that will be offer to do this right? players / refs or even the coaches can rigged it up if a good amount of money is being offered in front of them.
It's undeniable that in some cases the game can be compromised knowing that there are some rich mafias who can take the amount to the maximum level and pay everyone's who's involve inside the game.
Players may not be interested but if there's already existing event that same scene happened how can they say no if someone who are higher or more influenced than them are part of this business.