Be loyal to your wife. People organizations are higher order entities who could not care less about you. Building a relationship of loyalty with them is just not something you should do.
Then there is actually doing the work you are paid for and putting a good effort in but not letting it extend unreasonably beyond hours and not letting it stress you out. It’s actually far more rewarding to do this where you actually care about the work you do and feel some pride in it vs completely disassociating.
If they’re getting away with it, that’s a problem with the company not distributing their workloads properly. 90% of work hours wasted should be immediately obvious.