Ethical Corp, an on-online magazine, published an article Executive whistle blowing: what to do when no one listens (with useful comments too). It is difficult to broach the subject of dealing with immoral behaviour in companies because people who are immoral don’t care and those that do can rarely change the culture. The culture comes from the top and “the fish starts to stink at the head“, so you play along or suffer or get out.
The thing is, nowadays there are options. You can find a better place to work. You can take legal action (in some cases). You can kick up a fuss and people will listen. You still might lose your job and fail to get compensation. But you will feel better and you will survive and your track record of bona fides will serve you well.