Where is the reward for good work?

I have seen in movies (never in real life) that when a person does well, they finally get the reward. I had read, “Good work is never wasted; somehow, it makes its marks.” But I don’t know why I couldn't find it in real life. I have seen many people who did many good things… but where is there a reward? Maybe they got it, but I couldn't realize it. Then what about my life? I never wished anything wrong for others. I always say good things about others (unless this hiding made a bad impact). I made a good impression on many people and organizations. What result did I get back from them? If they didn't give anything good, that would have been acceptable… but what about when they make a bad impression on me? This is the final result I get for my good work… Fine!