[ptero]

This is not nearly as clear cut. In the real world, Jane has a much higher chance to burn out. Or mess up the team, as everyone now wonders if working long hours is Jane's peculiarity or the new normal. And if this makes people explore other options you always lose the best folks -- those who have opportunities in any market.

While I would agree with a softer form: "don't be a 9 to 5 clerk, do what is needed, including occasional long hours and weekends", if someone needs to regularly stay late it's a problem with the management, not with the Bob. My 2c.