I like to make the difference between being a servant leader and a nice person:

• The former can be very compassionate, listen actively, genuinely care, show integrity, do free acts of kindness, keep promises, clarify expectations, apologize quickly and sincerely when screwing things up-- which we all do. At the same time, they know and have been building their emotional healthy boundaries, making them able to confront and stand for themselves whenever the situation requires it!
• The latter are being nice for the sake of being accepted and loved.

I know the difference by experience! 🙈