Not true IMHO. In fact, most teams are somewhere in the middle.
Not any that matter. There are, at most, 19 that we need to worry about.
Here are the top 10 teams in the West.
Hornets: 32-12 (.727)
Suns: 33-13 (.717)
Mavs: 31-13 (.705)
Lakers: 28-15 (.651)
Spurs: 28-16 (.636)
Jazz: 27-18 (.600)
Nuggets: 26-18 (.591) Projected record: 49-33, we lose ties.
Blazers: 26-18 (.591) Projected record: 49-33, we lose ties.
Warriors: 27-19 (.587) Projected record: 48-34, we lose ties.
Houston: 25-20 (.556) Projected record: 46-36, we lose ties.
Here are the bottom 8 teams in the NBA.
Bucks: 18-28 (.391) Projected record: 32-50.
Sixers: 17-28 (.378) Projected record: 31-51.
Knicks: 14-30 (.318) Projected record: 26-56.
Clippers: 13-28 (.317) Projected record: 26-56.
Bobcats: 13-32 (.289)
Sonics: 10-35 (.222)
Heat: 9-34 (.209)
Timberwolves: 8-36 (.182)
Here's us:
Kings: 19-24 (.442)
To get into the 8th playoff slot, we need 50-32. That means going 31-10 (.756) from here on out.
To get the #5 draft pick, we need 25-57. That means going 6-35 (.146) to end the season.
There are no guarantees that the above teams will maintain the records they've had so far, but either a top 5 pick or a playoff spot requires not just that our record change dramatically, but that the records of 3 very specific teams also change dramatically in the opposite direction. That is simply NOT going to happen.
So we might as well try to enjoy what's left of the season, and hope that the younger players get a lot of development time.