I think you'll find that the poor generally don't save money -- they spend it, but I digress.

Also: Why isn't interest income considered passive income to you? "The fundamentals" are there for a reason, after all.

Poor people don;'t have enough money to save, by definition.

I don't think this is always accurate; a lot of poor people are poor through spending habits and poor financial management, not through lack of income.

I think that it's also good advice if you're not poor :)

Your second point is absolutely correct, but I still think that my comment answers the root question - how did you set things up such that you're automatically being given money for free on a regular basis? - in a way that is simple, requires very little effort, and has a very good chance of working for many people who are able to try it.