One common misconception is that the gloved handgag is always a violent or aggressive act. While it is often used in threatening contexts, it can also be a gesture of protection or secrecy. In some narratives, a character might use a gloved hand to silence a friend or ally to prevent them from making a dangerous noise. The intent is not to harm, but to shield.
Another nuance is the material of the glove. Leather, latex, cotton, and silk all convey different meanings. Leather suggests toughness and durability. Latex implies a medical or sterile context. Cotton is softer and more utilitarian. Silk is luxurious and delicate. The choice of material can completely change the tone of the scene.
It is also worth noting that the gloved handgag is not always performed by a villain. In some stories, a hero might use it to protect a witness or to keep a secret. The gesture itself is neutral; it is the context and intent that define its moral weight.