Does creating more jobs actually help the economy as a whole? So I recently came across an interesting point on why NASA isn't a waste of money, and it basically stated how NASA supports thousands of jobs, creates community events, and uses a part of its budget as the salary of some of the smartest people on the planet. But is this a huge impact?

Whenever a large company is created, it creates hundreds maybe even thousands of decent paying jobs. But does this only benefit the people who are working in that company? Or does it benefit the community as a whole (in terms of economic success)?
Generally, whenever people have more income, it doesn't only benefit those people with more income. Imagine you somehow received \$100 that fell from the sky (or through NASA job). Would you save the entire \$100 and never spend it? More likely, you would spend some fraction of it... let's say you spend \$60. This money you spend will go to a shopkeeper, who then keeps a fraction and spend some of that \$60 on something else, and so on. So this extra money benefits other people too, not just the person receiving the money.

If you're interested, you can read more about this here.