I think it is possible to get addicted to gambling when  there is also no gain and this is because there are always possibilities of players and gamblers chasing after their losses and we'll  all agree that in cases where gamblers begin chasing after their losses, is always ends up disastrous and addictions is always the end cases in most cases.
Well, there is always greed in human nature and gambling isn't exempted  because there are always the tendency to wanting to play and win more after a win because it is believed that since they're winning, that the winning will continue.