I think that point has more to do with having well-rounded leadership skills than being a workaholic. In fact, I would argue that demonstrating hard boundaries

I think that point has more to do with having well-rounded leadership skills than being a workaholic. In fact, I would argue that demonstrating hard boundaries when it comes to over-working is an exponentially better skill to have than working non-stop. The best managers I've had have known when to be done for the day and disconnect from work - and lead their teams to do the same.