Everything can be utilized either for one's own sense gratification or in the service of one other than oneself. There are two kinds of self-interest also, namely personal selfishness and extended selfishness. But there is no qualitative difference between personal and extended selfishness. Theft for personal interest or for the family interest is of the same quality — namely, criminal. A thief pleading not guilty because of committing theft not for personal interest but for the interest of society or country has never been excused by the established law of any country.
Similarly, advancement of learning, economic development, philosophical research, study in the Vedic literature or even the execution of pious activities (like charity, opening of hospitals, and the distribution of food grains) should be done in relation with the Lord.
The expert leaders of a godless human civilization cannot bring about a fruitful result in all their different attempts at educational advancement or economic development unless they are God conscious.
(Source: SB 2.4.17 - Purport)