As a lead you have to care about retention as well. People leave jobs when they feel like they are professionally stagnating (or worse, they stay), because for

As a lead you have to care about retention as well. People leave jobs when they feel like they are professionally stagnating (or worse, they stay), because for a software career, stagnation is death and everyone knows it. And high turnover will wreck your ability to deliver. So, you have to strike a balance between getting stuff done and taking care of your people in terms of professional development and growth. It's ok, most organizations fail at it. The "90% of everything is crap" rule applies to managers as well.