"Income" has nothing to do with work, but rather a sum total of all consumption and savings opportunity for an entity over time. This is basic economic terminology, which is why it's...you know...actually used here.

But don't worry! Your just-world rhetoric (wrapped, no less, in a pseudo-controversial, woe-is-me-I'm-going-to-get-downvoted "stand", aren't we noble) is noted.

Do we call money made from investments or inheritance Welfare? In a post agrarian society, work and income are not related.