Firstly: Yeah, you should be aware of what things cost and what benefit you get from them. Yeah, be prepared. And, yeah, think about the world in which you live and the other people you share it with. If you really want something, make a plan to get it. The words that describes these are "thoughtful" or "responsible," not "sociopathic." (Disrupting academic conferences and acting obnoxious on airplanes -- that's what we call "childish.")
What bothers me here, though, is that it feeds into this dipshit notion I keep running into that in order to be successful you have to be some kind of self-centered asshole. "Yeah, well Steve jobs would yell at people to their face when they said something he thought was stupid." Yeah, well for every asshole Steve Jobs, there are a million assholes no one wants to have anything to do with.
This woman, for example: she sounds awful. I'm sure she thinks she's some awesome-sauce lion-tamer of the universe, wielding her wiles and "remarkably beautiful breasts" like a ninja and slicing her way through life. The people who have to deal with her on a regular basis probably see right through her, roll their eyes, and try to leave her out of their lives as much as possible because whenever they invite her to a dinner party she makes a huge annoying scene and then steals a bunch of food from the fridge.