If you somehow imagine our companies in Poland (which are mostly western companies) are somehow giving workers here a bigger slice of pie, you are fed some weird propaganda. Our taxation is even worse if you look at exactly the same salaries.
Our success story is the same as recent India one - we're just much smaller. We have educated population that was underemployed and poor, and western companies jumped at opportunity of replacing entry and mid level positions with cheaper workers, across both factory and office work.
The taxation may be worse, but the cost of living is still uniquely low. So the same market salaries will actually go a lot further on a purchasing power basis.
Calling India a success story feels like a bit of a stretch compared to the better known Chinese case, or indeed Eastern Europe itself. They still have huge scope for further improvement.
My understanding was that the tax situation is not good for salaried work, but Tech workers primarily use limited companies to make it much more comfortable; many of the loopholes that have been closed in e.g. the UK with IR35 are still open.
At least that's the reason I've been given every time I've tried to take a contractor permanent!