This is blatantly untrue in the face of even a cursory thought. If the deli didn’t exist, that worker would have done any number of other jobs. Subsistence farming, doing deli stuff out of his house, maybe even community funding a coop grocery store.
That was how things worked at many points in human history. Instead of “private citizen makes $thing and collects rent” it was some variety of “municipality funds $thing for the community”. That just doesn’t extrapolate to a global economy well, for better or worse.
If a supermarket cannot be profitable in a small village, an investor isn't going to change that. The investor will invest in businesses that can be profitable.
> Your deli guy wouldn't have a job if the FoodCo guy hadn't done what he did.
People have had jobs since before civilization, and certainly before massive accumulation of wealth became the norm.
Unfortunately, this economic model has been proven to be wrong. If it were true, then we would have seen a decreasing gap between the rich and the poor. We didn't.
https://www.statista.com/chart/35953/inequality-wealth-gap-u...
https://www.theguardian.com/commentisfree/2022/oct/09/why-is...