My definition of "addicted"/"addiction" is anything that interferes with your daily life; or, anything that stands in between you and your needs.
There are many needs for human beings: Food, Clothing, Shelter, Income, Companionship, Socialization, Family, Sleep, the list goes on.
Thus, anything that comes along that compels you to do certain activities (chess, gambling, alcohol, sex, video games) at the cost of meeting your physical, financial and interpersonal needs is not a good thing.
Under these definitions, no, addiction to chess (or anything else) is not a good thing.
Maybe one can end up like Bobby Fischer or Paul Morphy. One day I wish I'd play and then people would shower me with gold coins after every match. But I say you can never be the WC, If ur not addicted to chess!