Eventually there'll be no truly useful purpose for most people EXCEPT as a functioning market for selecting goods and services, for the benefit of the much smaller percentage that can innovate and run small businesses. Heaping scorn on the majority of people seems like a weird strategy.
By far the most effective technique for improving conditions for the small entrepreneur is to dump money into the customer base, even if that customer base won't be making entirely 'good' decisions. Hell, if you don't like them all doing heroin at home in their rooms, build nightclubs. If they are not so broke that they can't come out, they'll start attending your nightclub because there are other things in life besides nodding off on soma.
People with no money tend to think they need to use any money they get ASAP on fast rewards, only when they have enough money to save do they start thinking about saving any at all. Of course this will hardly work to get those already addicted to change their ways overnight, but some long term financial stability can change the worldview of new generations so they plan for their own future instead of living like they were to die tomorrow.
The problem is we already do this in the US, and we've seen the concurrent rise of a new drug epidemic arise alongside it among the same demographic who are receiving disability.
Your post that I was replying to was also very specifically NOT about the working poor, but about jobless people on disability having a "lack of purpose".
if we just broaden the handouts from taxes on the large corporate winners, couldn't that make this problem worse? unless there's something else driving it.