Well Embiid is their core piece, but I don't think Okafor, Simmons, Noel, Saric, McConnell, Convington, Holmes and Stauskas are scrubs. Over the next 3 years the 76ers will have 5 first round picks, which will be most likely in the Top10, if the Lakers or Kings don't improve suddenly. Their roster is very young and so far not costly at all. The biggest issue is the upcoming FA of Nerlens Noel, who is upset and wants a bigger role.
They need to find a good trade for Okafor or Noel to move forward with a more balanced roster, but Noel will be a RFA, so their hand is not forced to make a move asap. Both their backup bigs have decent value and might help to sort out their PG or SG situation in a trade.
Sixers have done a nice job in developing some of their young pieces. They have a decent culture, thanks to Embiid, McConnell and Coach Brown. They make tons of mistakes, but they play hard every game, despite not being a veteran team.
Long story short - 1 potential star, a ton of young assets with upside, a ton of draft picks, a ton of capspace, a hard working no nonsense culture - despite the injury risk of Embiid this is still a very good rebuild. The Sixers have card blanche to built a contender over the next 5 years. I don't trust their FO to make it work, but the assets are there.
The Kings on the other hand? 1 proven star player, a ton of aging veterans, their second best player is out with a potentially career ending injury, 2 expiring PG's, some young assets, potentially 1 draft pick over the next 3 years, less cap space than the 76ers, a marginally better record so far, a lot of talk about culture, but so far came out with a lack of focus and effort in a lot of games.
I don't think we should talk down the 76ers.