I see addicts like on Intervention, usually with drugs/alcohol, only want this one thing and will do any and everything they can to get it. Doesn't matter what they sacrifice. They want their vice.

(Side note most of the people in all of these shows, have some sort of emotional trauma they are working through).

My 600lbs life has this huge focus eating and consuming. But the peope need to fix themselves mentally, in order to make it through successfully. They have this desire to get more and more food, their vice.

Hoarders has all these people obsessively collecting things. Don't throw anything away, just in case we need it. These people end up walking over the things they own in order to move around their home. Some can't even sleep in their bed. They just make a spot on the floor They have so many things, but the problem is that it's never enough and they aren't even using the vices they collect.

Billionaires seem to have some of the same problems. Over collecting, singular focus, sacrifice any and everything for their vice. We are just more accepting of people being obsessed with money. Hell we build economies based on being obsessed with money. All of that to say, yes I agree that I think there is mental illness involved.