I've been reading up on link wheels/pushing recently, and its quite interesting. However, what I'm not quite understanding is how its different from simply obtaining some highPR backlinks. The more I look at a link push diagram, the more it looks LESS powerful than a high quality backlink (from something like an edu or gov domain).. The only beneficial difference I can see if that a "created" backlink(the link-push node) is from niche-related material. Does that make sense, or am I missing something?