Honestly, we can not make an absolute conclusion. All things being equal, both relating well to people and studying hard were essential. Different groups of people have different demands, and different people would make a preference between two choices.

My point of view determines my experience. I am majoring in chemistry at my university, and I think studying hard in school is prior to relating to people for me. For one reason, chemistry requires accumulated knowledge and experience in the lab. The more I learned, the more credits I earned. Moreover, my future career is based on my accumulation of chemical basics instead of my relationship. A wide net of relationship makes no sense for me.

However, my situation does not fit anyone. One of my friends is majoring economics and business. He has a definitely opposite way compared with me. For him, building an extensive relationship among people would make a huge benefit for not only his courses but his future career. For example, some of his courses need to complete by a group. In this term, a wide net of relationships can help find useful messages more efficiently. Moreover, after graduation, it would be easier to enter a big company if you have a relationship among staffs or even CEO, etc., who is familiar to your background.

After all, we can conclude that which one is more important depends on yourselves. Of course, if you were good at both relating to people and studying hard, your success rate would skyrocket. However, we emphasize more about the knowledge nowadays because science is leading humanity to make promising progress. It will be counterproductive if you only focus on the ability to relate well to people. On the other hand, we can not just study hard. Only if you relate well to people will you broaden your horizon, which is equally essential.