Where an individual has a job that requires questionable ethical practices or long absences from family, only that person can answer the question about the tradeoffs between income, your working conditions, and justice. Each situation is a matter of conscience.
Whenever people act against their conscience, they self-destruct to some extent. Where that is true, the material advantages of a job may eventually be little comfort to and individual and his or her family.
Where you are unsure, wrestle with the situation until you can look in the mirror and honestly say, “I know that in the long run I have done the right thing for myself and my family.”