NJ also has the ability to attract players like Hamilton that Winnipeg does not. Rebuilds eventually happen, sure, but they aren't equal for every market. Rebuilds work best when you can fill holes that your draft picks can't fill and Winnipeg has a much harder time than most to do that.
Plus 1sts are just draft picks, they aren't players. The league has a lot of 1st rounders that struggle to stick in their team's lineups.
I think if there were multiple 1sts for Hellebuyck and Scheifele out there, they would've been moved in the summer.