Well, English isn't my first language, so I don't know all the fancy words. But I'm sure you catch my drift.
Also, depending on how it's done, runs/pony sale is closer to paying for a service than anything. It's something one can do themselves with time and practice, but that they think is faster/easier if they ask someone more experienced to help them with it.
No matter how you look at it, house flipping is a blatant rip-off. They know you cannot otherwise get what you want, so they try to profit from it. So in that sense, it's worse.
I do get what you mean, though, and I agree with some parts. But that hardly makes the house reselling any more justifiable, imo.