I think the trick is to give and take. And maintain teams that give and take.

Sometimes I need to take my foot of the gas. But I also appreciate that, when I do, someone else has to pick up the slack.

When I encounter teammates who only take, take, take, and never give, either they leave or I do (depending how much influence I have over their employment)

The trick is that everyone is both in my experience. I had weeks where i worked barely 10 hours (well, a week actually, but in my defense, the onboarding was shit), including meetings and mails. Most of the time once i understand what i have to do (and that can take some time), i'm around 20 to 30 hours. But i know i can whip myself and work 45 full hours (legal duration in my country is 35), as i did during august when the team was on vacation and we had a lot of fires to tend to, for two weeks.