[it makes sense too because why would you do something if it doesn't give you any benefit. however, there are still many gamblers who don't mind that even though their gambling doesn't make a profit for them, they still play. this is because they gamble to have fun or because they just want to get lucky, so when they don't get a profit from it, they don't mind it and think that it's okay, because the most important thing is that they enjoy gambling.
When there is no benefit whether that is fun or making money then there is no reason in gambling. For gambling, we should be aware of our profit whether that is making money or for fun. If missing these two then it is useless.