If a ship were straight-up captured by pirates and the crew held for ransom, I would still expect the company that sent the crew out to do everything in its power to bring them home. If said company simply shrugged and said "we tried to come up with the ransom money, but couldn't", I would consider that behavior unethical.

The same applies here: yes, Egypt is corrupt. Yes, this is a massive violation of human rights. But the company took on a moral responsibility when it sent out that crew. We can't excuse someone from their ethical duty simply because other people neglect theirs. Ethics is meaningless if it stops applying as soon as there's corruption outside.