do choices of self-interest aligned with social-interest?
Self-interest is when individuals make decisions that are in their own best interest. Social interest is when choices are made that benefit society as a whole. When individuals act in their self-interest, they go to work and buy things because it makes them happy. But by working and purchases things, they are also contributing to society and the social interest, as did, for example, the creators of Facebook. So, choices of self-interest are aligned with social-interest.