What do you think?
I think there is no criterion for importance. The people whom we consider important do not consider themselves important. Only others perceive them to be important. If importance is a matter of perception, you have to first perceive yourself important.
To become an important person in society, I believe that I must first be the most productive, in terms of influence and work related fields. That way I could set an example for the other members of society, thus contributing more productiveness and cause for every act that is done by every member, and it's easy to do this because of social media.