I will have to start by saying that from Heli-Jet's inital posts, he/she had a little information, not intimate knowledge, and wanted to s4!t disturb.
Thankfully, others with better facts have piped up.
Any nation that has the resources locally to fill posiitons, will refuse to allow companies (especially in aviation) to use expats on any but very short terms.
Touring isn't an easy life and those that do will always need to be compensated for that.
The option always exists for the national pilots/engineers to leave the position they have and apply to fly elsewhere as a touring pilot/engineer.
I've had the fortunate (or unfortunate) experience to be both a national and an expat pilot, and have friends from other nations who have had similar experiences.
The grass isn't always greener.
You have to decide what is important to you and choose, noone in their right mind will just give you everything.
BTW: the pilots at HeliJet are not low-timers, they are generally high time but with limited S76 or offshore time and need to tick a couple boxes for the often ridiculous min captaincy requirements for customers like BP, and ExxonMobil.