One person can cause so much turmoil for many due to the influence and impact they possess over others. Through their actions, words, or position of power, they can shape the environment and dictate the course of events. Additionally, their behavior can ignite conflict, spread negativity, or manipulate others, thereby creating further turbulence. Ultimately, the ability to cause turmoil stems from their ability to exert control or sway over others, leading to widespread consequences.