As clear a statement as you can get, this time from Sheryl Sandberg, COO of Facebook:
I walk out of this office every day at 5:30 so I’m home for dinner with my kids at 6:00, and interestingly, I’ve been doing that since I had kids. I did that when I was at Google, I did that here, and I would say it’s not until the last year, two years that I’m brave enough to talk about it publicly. Now I certainly wouldn’t lie, but I wasn’t running around giving speeches on it.
Dr. Deming talked about the need to drive fear out of the workplace. I think that's a key element of respect for people. An environment where people are afraid to go home so they can be with their families (or just go home so they can take care of themselves) is quite the opposite.
Here's Sheryl's video. Well worth the 57 second investment to watch.