some type of socialist program without stigma. A wanderer in the USA who has no permanent home is homeless and stigmatized, no matter how intelligent. A person who received money from the government is stigmatized.
But in countries where social welfare is more of a priority, not all people without property are just homeless people. They could be intelligentsia. I know this was somewhat of a Russian / Polish / Marxist thing but there has been respect given to traveling smart folks throughout history. Bards, Poets, etc.
The closest thing we come to in the USA is a consultant.