I think a lot of people reading and responding to this topic are unaware of what happens outside their own backyard.
I am not defending or promoting poor pay and conditions, merely reminding some readers that many countries in the world have
- no paid unemployment benefits
- little or nothing in the way of social welfare benefits
- very few employment options locally for unemployed pilots
- weak local currency
Therefore when you are faced with unemployment (unpaid) and
- high mortgage payments and high interest rates
- high cost of children's education (to give them a better life)
- rampant inflation
- perhaps parents and brothers & sisters to support too
- no chance to get an airline job in your own country..............
...........then suddenly you are very keen to obtain ANY flying job, lest you sucumb to starvation/homelessness/family breakup.
Remember an Argentinian or Phillipino or Bulgarian did not choose to be born in those countries; being born in Europe or North America or Australia does not make you better - just luckier.
So if someone, through economic necessity, takes a position that you choose not to take, it does not mean he is trying to undermine your T & C's. It may just mean that he is trying to stay alive.
Finally, if you are in a secure position with a national carrier, please resist the temptation to look down upon those who have taken lower paying jobs. Unless you are faced with unemployment and any or all of the difficulties listed above, you simply cannot appreciate what an invidious position you may find yourself in.