you think job insecurity is what makes me work hard?

Well, considering you make more in one movie than most Americans make over the span of an entire career, I think your perceptions of work, pay, and the need for job security are grossly distorted from those of a normal person.

Now, you may enjoy acting to the degree that you would do it for free, and I have no doubt that there are people in the world who love their jobs so much that they would work either for free or at the minimum salary needed to keep them fed and clothed, but most of us are here for the money.

As a rational actor who is occupying their time with something they do not enjoy so that they can get the money needed to live their life, if I had the opportunity to receive my paycheck without actually having to work for it, I would take it in a heartbeat. So would almost everyone else.