Depending on the tone and context, "Sigma" can be either a compliment or an insult. Calling someone Sigma presents them in a positive light by praising their self-reliance, self-control, and capacity to succeed without approval. On the other hand, use it cynically to make fun of those who act distant to appear superior. Therefore, depending on how it is expressed, it can either be empowering or critical. Know more about What does sigma mean