First of all, Slim is an enjoyable person. He talks very casually towards George and Lennie, the newcomers. “It’s brighter than a bitch outside” That’s not something you would say to someone when you first meet them. Unless you’re Slim, or this case, on the top of the hierarchy. When asking George and Lennie if they traveled together, his tone was friendly and it invited confidence without demanding it. These
traits make him a nice person.
In addition, Slim is very skilled at his trade. He is “…Capable of driving ten, sixteen, even twenty mules with a single line to the leaders.” This shows that Slim is an expert at his job and has a lot of ability to do things. Slim’s job is a jerkline skinner (lead mule-team driver) at the ranch. When he talks to George and Lennie, it seems like he knows a lot about his job. He is even capable of killing a fly on the wheeler’s butt with a mule without touching the mule, only something someone experienced could do, in this case, Slim.
Furthermore, he is respected by everyone in the ranch. “There was a gravity in his manner and a quiet so profound that all talk stopped when he spoke” On the ranch, Slim is a sort of king. Whenever he talks, his word was taken on anything. Even though he lives in the countryside, he moves with a majesty only achieved by royalty. Many people talk highly of him, and that’s why he is at the top of the Hierarchy.
In conclusion, Slim is on top of the bunkhouse hierarchy because he is a very gratifying person, he is very experienced at his job, and he is appreciated throughout the ranch. All these qualities would make him go straight to the top of the bunkhouse hierarchy.