That sounds far from simple and totally ineffective. Finding a way to make $1 that scales to that extent is non-trivial, in fact it is probably harder than opening a successful restaurant.

Hiring people is out unless it could be repeated quickly (they charge an hourly rate that you have to fade) and if that's true, the minute you show someone how to do it they'll cut you out. Unless there is a barrier to entry, which generally means cost, in which case you probably already have a million dollars.