Actually when a gambler has gambled with what he did not allocate properly for gambling, then it is a sign of an addicted gambler.
Such as an allocation of $ 50 for each week, but when the gambler finally allocates all his salary to gambling, then we can judge that the gambler is addicted.
The actions of the gambler beyond the limits you mentioned have made the gambler seriously addicted. Because the efforts made have involved other people to feel the loss. The impact of gambling addiction is indeed quite large on a person's life, especially their financial and social.
It doesn't need to be all their salary, and it doesn't necessary need to be about money either. Money is just one thing you control, there are others as well. When something takes more time then you have planned using, it can be time bad management issues, or it can be a problem one is feeding. That time can be away from something important, like sleep, family time and relationships in general.
I had a pupil in my school who was always late, because he was gambling during night, because that was his only free time to do it. And that would be fine if someone wouldn't have obligations that require time.
That lead to sleep deprivation, and it's could be the reason he got injury while working.
One could argue that time is money too, but imho time is not about making money. It's about living a fulfilling life, and that rarely happens when that time, you are using for addiction is stolen from something more important.