Yes that's basically what Quebec (and probably other provinces) is doing.

> Do twice as much work for half as much money

I might get tomatoes thrown at me for this, but anecdotally "third-world" nurses are usually not as good due to having experience on different equipment, drugs and often languages. It's better than having no one to cover the shift, but it can be seriously dangerous due to lack of training on specific protocols.

They get paid the exact same amount of money and are in the same union, so they absolutely don't do "twice as much work for half as much money".