According to karl marx, the most important factor in social life is a person's:

The most important factor in a person's social life is relationship where it could lead or with the means of production. In a person's social life, relationship is important in a way that this is an establishment of connection towards other people, whether they are close to you, someone special or someone you cherish on your life. As they affect the person's life in many ways and shape them into the people that they are now.