My point is that be famous or successful on what you do doesn't guarantee happiness and that's why is so common to see that

Absolutely agree. Success, fame and even money doesnt give happiness, happiness comes from the connections we make with people. When these are deep, we feel better, we feel we are not alone, part of something. Any joy we get from being famous, succesful and money, is just instant happiness, a kinda of happiness which in the end is not real life long term happiness.