I'm a leader and it's my standard; sure the dialogue doesn't come across as formally as I've written it here, but it's essentially the same. It's the minimum in my opinion for any leader or manager and, in some situations, a parent as well.
A true leader will uplift the team, help them be their best as individuals and as a unit, and never take the credit away from them for any success they have.
There's a lot more to it as well, of course. If a leader hasn't built a good team, empowered them and supported them the leader will fail miserably, as will the team/unit. A bad leader will blame the team for that despite it being the leaders' fault.