If you want to be a millionaire, even if it's realistically a bit beyond the horizon, maybe it does make sense to focus on ever higher goals which are way beyond the horizon for everybody, like becoming a billionaire. For one thing if you don't make it all the way (which everybody knows is unlikely) it still could be pretty good. In that sense, the higher the goals the better.
But beyond the horizon it's a very indefinite goal to zero in on, in an uncertain direction that can not be accurately visualized.
It can be good to have a north star if you're trying to be a millionaire or billionaire, but if it leads you in a direction that does not include a thousandaire pit stop, I would question whether it was really true north or not.