Outcasted Thoughts

In the real game of survivor, the tribe-mates who are helpful at camp usually are viewed as valuable, giving them a bit of a morale boost with the tribe. Thought is, why don’t we get rewarded with morale when we take the action of helping the tribe? Why does our morale only go down until we eat? Could we gain morale for hunting and collecting water for the tribe? Isn’t that the point or am I way off the point?