When any gambler is addicted, then I do not think that it is in any way beneficial for him. An addicted gambler will always spend and lose more money in gambling and he will just make his life miserable due to gambling addictions.
When you are in a state of gambling addiction, you will most probably not in the state to analyse what is good or bad for you. This may be the reason why you are not focused and will not be able to make right decisions.
If only the addicted gambler can get lessons from the responsible gambler, that may help them change their gambling styles. I really find it hard when one is addicted to gambling and he manages to change himself.
A gambler who is addicted, he is not only suffering for himself but his family also suffers. Usually, if an addicted gambler spends a lot of money on gambling, this will also effect his family as that money belongs to his family too, which is being lost in gam bling.