True, gambling addiction does not only incur financial loss but also social losses. Friends and relatives will keep their distance from a person who is addicted to gambling. They will try to avoid these gambling addicts because they don't want to be pestered for borrowing money. Aside from that being a gambling addict may result in lost credibility and being irresponsible. So gambling addicts may also loss their family affection and eventually the partner may file a divorce or ask for separation if the partner wants to avoid the responsibility of taking care of the gambling addict.
These are the few possible losses a gambling addict may experience aside from money and losing jobs.
They will not want to approach someone who is addicted to gambling because they are worried that they will fall into gambling. But those who can control themselves well might approach someone who is addicted to gambling in an effort to make their friend aware of his gambling addiction and take him to a professional so he can cure his gambling addiction. This will depend on their concern as friends and their families must also be able to approach family members who are addicted to gambling so that they can cure their gambling addiction. Becoming a gambling addict will indeed make them lose responsibility towards themselves and the people around them, so they don't care about the presence of their family or friends anymore because they only care about their gambling activities.
So, if you simply approach someone who is addicted to gambling, there's a possibility for you to also do gambling? I don't believe that merely approaching an addicted gambler will put you in the same situation as them. It's more about how a person takes action and communicates with the gambler to make them understand their current situation. This is typically done by people who are trusted by the gambler.