I am much less bothered by the Aarons of this world "not paying taxes" and living a life outside the traditional economy than I am about mega-corporations which don't pay anywhere near enough tax if any at all, who also rely on infrastructure and in some cases promise to pay for infra to allow projects, then don't pay and the local authority can't afford to sue them, then the council has to build AND maintain infrastructure that is solely for the benefit of BigCO e.g. roads that just go to their megastore or drive-thru...
Aaron may not pay taxes, but it sounds like he does good in his communities as a whole. He clears up areas of public land which might otherwise be neglected (perhaps cos the authority that owns it can't afford or can't be arsed to maintain it). The chances are Aaron contributes to public infra in a more direct way by looking after it...
The idea that everyone should EARN to contribute is very capitalist. We forget the people who may not have traditional jobs and lives, but often do a great deal for the community. I am thinking of a family friend who hasn't worked since the 70s before she had children, and when she became widowed in the mid 80s it wasn't financially sensible for her to work (she'd have lost a range of husband's pensions). She hasn't earned and paid tax bar VAT and car taxes, but she quietly does lots of good things for other people. She often helps elders in her faith community, drives them to hospital appointments, helps keep the local nature reserve tidy and so on... IF she was working she wouldn't be able to do the community stuff she does. She's also very astute, and it was thanks to her my mum got more clue on racism as this friend introduced my mum to Reni Eddo-Lodge's race book by going to a talk by Reni about the book and stuff...
Not everything has a financial price tag on it and that is OK.