group or club is hereby defined as a regular meeting of three or more students.” (17.4) Umbridge knew the only way to keep her power was to completely dehumanize all those around her. She used torture and threats to keep everyone under her power.
Professor McGonagall is a very respected teacher at Hogwarts, and when challenging Dolores’ ways, even she becomes a target, “How you took the case to Dumbledore, who insisted that the team be allowed to play?
Well, now, I couldn't have that. I contacted the Minister at once, and he quite agreed with me that the High Inquisitor has to have the power to strip pupils of privileges, or she – that is to say, I – would have less authority than common teachers!” (19.141) Umbridge begins to wield her power to her equals because she knows she can get away with it, she knows how much power she has. When power becomes malicious and evil, it has gone too far. Umbridge's power has become too strong she doesn't even know what to do with it, so she takes advantage of it and hurts everyone around her.
Power can be dangerous. It can affect everyone in a society in a positive or negative way. You can not gain power without having the ability to control and weaken a group of people. Harry Potter and the Order of the Phoenix shows how power can grow to become too
much.