In Chinese saying it goes: "You see me good, I see you good"
In English saying: "The grass always looks greener on the other side"
To PNG, I guess you are quite new to the scene.
In order to organise a gig, there are the gig management people, equipment supply, venue supply and misc stuff like security supply...etc. These need to be settled as well, in cash or in kind.
If you are just looking at the band, you are just like the customer eating a hamburger. How did you think the hamburger end up in your hands, a burger garden?? That is just the end-product.
Look at the BIG picture, if everything is so easy, all of us will be millionaires.
I don't deny some organiser do exploit the situation to 'make' money by giving empty promise. If you find such people, then boycott them by all means. Anyway I don't think they can make much anyway, judging the scene in singapore.
This topic keeps coming up, it's getting pretty much a drag topic already.