The floor for Marcus is the 5th best player in that draft, we drafted him 6th so that's a victory. Embiid looks hands down the best, Wiggins is a better player but I question if he'll have the same success. Jokic was picked #41 but has developed into a great player already. The only other guy is Parker, who as you say has torn his ACL again. Who knows if he can come back strong from that. I hope so but it still impacts his long term development.
I hope the talk of Gordon, Randle, Exum etc being his equal will die away, he's a tier above them.
The fantastic thing with Smart is his versatility means there is no 'decision' between him and IT in the same wy there would be with a guy like Dunn or Lonzo Ball on the team. Smart can play alongside IT for the long term, or take over at the point if we changed direction.
No one is untouchable but I don't think you ever get a fair deal for Smart, he's the kind of guy you appreciate far more when he's with you than when you look from the outside