Is it true Leaders eat last?

Me and my Team were attending a weeklong conference and when it came time for our lunch break, my Team left to eat but I stayed behind at my laptop to help another Team that was not at the conference (answering their texts, emails, etc).

I was surprised when the Team returned from lunch and two members actually asked me if I had eaten or not. I was very happy and proud of them.

Is it true, that Leaders eat last?