Needs have no end.

We all feel that once we have satisfied all our needs, we will feel fulfilled. That's not true. If you keep waiting to finish the bucket list of needs, I assure you you'll kick the bucket sooner than feeling fulfilled.

Greater good

A leader should prioritise the group over the individual. Individual needs are difficult to fulfil or sometimes almost impossible to meet. But if we fulfil the demand of the group, it makes a fair balance for every group member. Compromise for greater good leads to greater sense of happiness than selfish stubbornness ever will.