Negan was also an extremely ruthless leader, willing to do whatever it took to obtain resources and supplies for his group by extorting from multiple communities, threatening them with death if they did not obey his demands or did not gather the necessary amount of supplies. Negan is shown to be a cold-blooded killer who kills not just for survival, but to send a message and as punishment for disobedience as seen when he brutally murdered Glenn after Daryl attacked him even after he made it very clear he would punish anyone who provoked him. He also has no respect to those he views as being weak as he brutally slaughtered Spencer after the latter attempted to convince him to kill Rick, claiming he had no guts to do it himself. He explained to Father Gabriel that he wants to help people through their weaknesses and by being strong he makes the world strong. This may explain why he uses fear as an instrument to keep people in line. By being hard on people he makes them stronger and more inclined to survive. Negan tells Maggie years later that this version of him was just a show that he put on when Negan needed to protect his people and that Negan was only ever a monster when he absolutely had to be.