There isnt nothing against gambling as long you can control your mind and never play with the money you need to survive and pay bills,people some feel exited gambling and dreaming with a reward or atleast a reward to get profit,i had been at casino and well i got almost insane won 30 loose 20 then i ended without the 50 i had to give a try at it .
Indeed, you are right you have to keep your mind in control if you can do that there will be nothing wrong with gambling, and you will not get addicted.
I think if you just gamble for the enjoying part and also can make a little profit its not wrong at all its just a choice you are making in your spare time right ?