I don't think they'd be pissed at not being seen on Hogan's level because the first three nWo members were already on the same level, really. There was never a doubt the Outsiders were top guys and could main event any show without anyone batting an eye. If Hall and Nash do other things, or at least do things adjacent to other things, it works well. I think Hall would be pretty down to work hard and make guys look good for a little while. Not put a lot of people over, I'm sure, but make them look good. Nash would be a huge star in any context because whoever he works with benefits from being near him (until he kills them). And if you wanted to put a title on them, that's probably a good idea so Hogan can do his "take time off and come back to pop a rating" thing more.
Luger's run suffered by the belt not being a focal point to his other stuff. The TV title being elevated* and in play with all of his tweener bullshit adds a lot. Badd leaving hurt DDP more than Luger being the champion, short term, but I don't think there's a scenario where he doesn't get a huge push in some fashion. It's surprising Brutus never got a small title run, though. I would've thought him more likely than Duggan. Regal's thing with Sting made sense if they were actually going to elevate Regal but the main event buzzsaw was in full effect.
Sting/Luger vs Mega Powers should've been at, like, Uncensored 98 with Savage turning or something. There was no other way. Honestly I feel like heel Mega Powers would've been awesome so it's too bad that didn't happen.