On Selfishness and Ayn Rand

Ayn Rand describe selfishness in the Virtue of Selfishness as being viewed by many as some brute troading over corpses to achieve some kind of evil self profiting ends. When I saw that description I thought, no that isn't what I think of when I think of the term selfish at all. I think of a bully or perhaps a child being petty over an possession. Selfishness as a "childish act" that for the most part needs to be out grown or eventually develop into "sociopathic" behavior. To those ends yes such behavior could be considered crude and even evil, but at the same time pathetic and petty. Another thought would be "hoarders" keeping everything to themselves, and unwilling to share. Bottom line I am describing the acts of a very very childish individual that doesn't necessarily have to be some brutish being on the contrary they could be a calculating sociopathic genius angry at the world for some reason or another. My envisionment of selfishness is also under the same header as greed though greed is a more adult term in my opinion. Both reflect a kind of hatefulness and hostility towards giving or sharing. Objectivism is merely an attempt to reframe bad societal behavior as good or somehow wholesome not as much out of guilt, but out of attempting to influence and control.