It's sort of well-known that anytime any catastrophe happens anywhere in the world, they can count on the United States for help.
Still, it can be more effective to accomplish what you need to accomplish with the minimum effort. Watch Anthony Hopkins. He doesn't appear to be doing anything. He is so still that you can't see him working, but you are drawn into his character through his very stillness.
Life doesn't offer you promises whatsoever so it's very easy to become, 'Whatever happened to... ?' It's great to be wanted. I spent a few years not being wanted and this is better.
The reason actors, artists, writers have agents is because we'll do it for nothing. That's a basic fact - you gotta do it.
It can have an enormous effect because big budget movies can have big budget perks, and small budget movies have no perks, but what is the driving force, of course, is the script, and your part in it.