You think they win more like 75% of the time- crazy off market, but it should be like minus-300- then you should be using that and parlaying it with your other edges you have on the NBA card.
That implies they need to win the game over 66.7% of the time for it to be a profitable endeavor. If you have two teams that you think- for example, let's say the Raptors were minus-200. So you can absolutely have value in a moneyline parlay.
I think in general, people don't know what they're doing as far as projecting probabilities and what the prices mean in terms of what the probabilities are of those teams winning.