Do you think that contributing to the world in a positive way is an obligation for every human being?

define contributing. define positive. one man's right is another man's crime. if contribution to a cause is an obligation then desire is meaningless and procreation becomes not only mandatory but systematic. you no longer get to choose a mate, you just get pregnant over and over to produce more laborers. you do not get to indulge recreation, only that which will stimulate progression of the species is allowed. this is what obligation really means at its core.