they don't think they've done wrong here. in the same situation they want to be able to do the same and get away with it. these aren't people who have learnt something about keeping their word - they're paying because it's the best way to manage the crisis. the third rule is to justify their actions: they don't feel wrong; they regret that they were caught without a good excuse.
they have come out of this looking appalling. worst of all, they don't get the idea that people - good, committed engineers - don't stay or leave because of salaries and bonuses. they leave because management sucks.