If the Packers were actually geniuses that could be reliably copied...it would have happened already. Reality is, it isn't that simple. The most important thing is scouting and development. Where you end up drafting them and how much you pay won't matter in the end as long as you actually make them good. Heck, even the Packers weren't patient to get Love. They traded up to get him, and in most eyes, drafted him way earlier than he ever would have been otherwise.
The problem isn't these teams trading up or drafting guys Top 5. It is the fact their scouting is either terrible or they suck at developing....and of course, guys don't pan out up and down the draft. If you are actually drafting Top 5, it took a lot of dumb within the organization to get there. So, the odds you make a smart decision drafting is an uphill battle from the start.
If we took a collection of guys drafted Top 5 that failed the last 10 years and instead placed them on competent teams(and probably with more talent/supporting cast)...how many of them have dramatically different career trajectories? Arguably the two best QBs in history (Mahomes/Rodgers) weren't drafted insanely high and sat for multiple years, yes. However, they both got dropped into perfect situations: good coaches, good teams, competent front offices.