Every deserving action should be rewarded likewise evry reward should be well deserved

Yes, exactly this statement is true for the real life.
The doing of some good work should result in the reward as the person who has done it got motivation from this reward , although he does? not demand but the deserving action can be rewarded for the spread of the good deed. For example if someone found the money on road and then return to it to it's original owner for a good deed then he? should be rewarded as this will motivate him for doing such things in the future again and again. But the rewards should also be given to deserving one's .