I suppose the difference with them compared to us is that they lost heavily and landed higher picks. In recent times our highest pick was the #4 we used on Tyreke Evans. Outside of him and Cousins #5, our draft position hasn't really left us any real opportunity to land star calibre talent.
Granted hindsight would say we were foolish to pass on Klay Thompson and Kawhi Leonard in 2011; Damian Lillard, Harrison Barnes, and Andre Drummond in 2012; CJ McCollum, Steven Adams and Giannis in 2013. But taking hindsight away, our options on draft night based on what the expert's draft boards looked like were clearly different and didn't have those names mentioned as possibilities with our higher draft picks (either that or I didn't see it).
Compare that to the 76ers and they've tanked really hard resulting in some very high draft picks. When you end up with bigs like Embiid (#3), Okafor (#3), and Noel (#6 via trade); a star potential PF prospect in Simmons (#1); and the other talent they've accumulated, the hope is sooner or later they'll come good. In the 76ers case they've been very lucky and landed a potential star or two to build their future roster around. Other high pick draft teams haven't been that lucky, and other teams that have been stuck in rebuilds for what feels like forever haven't been as lucky (though we have at least got one star in Cousins, problem is they've yet to put that supporting cast together to take us from pretender to contender).
It certainly is easy to envy them at this point, they could be very good if their talent continues to develop, which will be exciting for their fans to watch that young team grow up together.