[ricketycricket]

The problem is that you are saying two different things in your replies. On one hand you say that you aren't suggesting that people work for free, and on the other hand you say that people leaving when their shift is over should not be rewarded with raises.

If employees are being paid to stay after 5 or be on call, then their shift isn't over. If they aren't being paid for their time, they absolutely should go home. If the product cannot afford to go down, the company is responsible for keeping paid staff on hand. Expecting people to work beyond the agreed amount and punishing those that don't by removing opportunities for advancement is reproachable. It may be the norm, but it shouldn't be.